CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6769 vulnerabilities reference this CWE, most recent first.
GHSA-WXQQ-8JJM-6PJM
Vulnerability from github – Published: 2024-11-07 12:30 – Updated: 2025-11-03 21:31In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Don't call cleanup on profile rollback failure
When profile rollback fails in mlx5e_netdev_change_profile, the netdev profile var is left set to NULL. Avoid a crash when unloading the driver by not calling profile->cleanup in such a case.
This was encountered while testing, with the original trigger that the wq rescuer thread creation got interrupted (presumably due to Ctrl+C-ing modprobe), which gets converted to ENOMEM (-12) by mlx5e_priv_init, the profile rollback also fails for the same reason (signal still active) so the profile is left as NULL, leading to a crash later in _mlx5e_remove.
[ 732.473932] mlx5_core 0000:08:00.1: E-Switch: Unload vfs: mode(OFFLOADS), nvfs(2), necvfs(0), active vports(2) [ 734.525513] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR [ 734.557372] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12 [ 734.559187] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: new profile init failed, -12 [ 734.560153] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR [ 734.589378] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12 [ 734.591136] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: failed to rollback to orig profile, -12 [ 745.537492] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 745.538222] #PF: supervisor read access in kernel mode [ 745.551290] Call Trace: [ 745.551590] [ 745.551866] ? __die+0x20/0x60 [ 745.552218] ? page_fault_oops+0x150/0x400 [ 745.555307] ? exc_page_fault+0x79/0x240 [ 745.555729] ? asm_exc_page_fault+0x22/0x30 [ 745.556166] ? mlx5e_remove+0x6b/0xb0 [mlx5_core] [ 745.556698] auxiliary_bus_remove+0x18/0x30 [ 745.557134] device_release_driver_internal+0x1df/0x240 [ 745.557654] bus_remove_device+0xd7/0x140 [ 745.558075] device_del+0x15b/0x3c0 [ 745.558456] mlx5_rescan_drivers_locked.part.0+0xb1/0x2f0 [mlx5_core] [ 745.559112] mlx5_unregister_device+0x34/0x50 [mlx5_core] [ 745.559686] mlx5_uninit_one+0x46/0xf0 [mlx5_core] [ 745.560203] remove_one+0x4e/0xd0 [mlx5_core] [ 745.560694] pci_device_remove+0x39/0xa0 [ 745.561112] device_release_driver_internal+0x1df/0x240 [ 745.561631] driver_detach+0x47/0x90 [ 745.562022] bus_remove_driver+0x84/0x100 [ 745.562444] pci_unregister_driver+0x3b/0x90 [ 745.562890] mlx5_cleanup+0xc/0x1b [mlx5_core] [ 745.563415] __x64_sys_delete_module+0x14d/0x2f0 [ 745.563886] ? kmem_cache_free+0x1b0/0x460 [ 745.564313] ? lockdep_hardirqs_on_prepare+0xe2/0x190 [ 745.564825] do_syscall_64+0x6d/0x140 [ 745.565223] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 745.565725] RIP: 0033:0x7f1579b1288b
{
"affected": [],
"aliases": [
"CVE-2024-50146"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-07T10:15:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Don\u0027t call cleanup on profile rollback failure\n\nWhen profile rollback fails in mlx5e_netdev_change_profile, the netdev\nprofile var is left set to NULL. Avoid a crash when unloading the driver\nby not calling profile-\u003ecleanup in such a case.\n\nThis was encountered while testing, with the original trigger that\nthe wq rescuer thread creation got interrupted (presumably due to\nCtrl+C-ing modprobe), which gets converted to ENOMEM (-12) by\nmlx5e_priv_init, the profile rollback also fails for the same reason\n(signal still active) so the profile is left as NULL, leading to a crash\nlater in _mlx5e_remove.\n\n [ 732.473932] mlx5_core 0000:08:00.1: E-Switch: Unload vfs: mode(OFFLOADS), nvfs(2), necvfs(0), active vports(2)\n [ 734.525513] workqueue: Failed to create a rescuer kthread for wq \"mlx5e\": -EINTR\n [ 734.557372] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12\n [ 734.559187] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: new profile init failed, -12\n [ 734.560153] workqueue: Failed to create a rescuer kthread for wq \"mlx5e\": -EINTR\n [ 734.589378] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12\n [ 734.591136] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: failed to rollback to orig profile, -12\n [ 745.537492] BUG: kernel NULL pointer dereference, address: 0000000000000008\n [ 745.538222] #PF: supervisor read access in kernel mode\n\u003csnipped\u003e\n [ 745.551290] Call Trace:\n [ 745.551590] \u003cTASK\u003e\n [ 745.551866] ? __die+0x20/0x60\n [ 745.552218] ? page_fault_oops+0x150/0x400\n [ 745.555307] ? exc_page_fault+0x79/0x240\n [ 745.555729] ? asm_exc_page_fault+0x22/0x30\n [ 745.556166] ? mlx5e_remove+0x6b/0xb0 [mlx5_core]\n [ 745.556698] auxiliary_bus_remove+0x18/0x30\n [ 745.557134] device_release_driver_internal+0x1df/0x240\n [ 745.557654] bus_remove_device+0xd7/0x140\n [ 745.558075] device_del+0x15b/0x3c0\n [ 745.558456] mlx5_rescan_drivers_locked.part.0+0xb1/0x2f0 [mlx5_core]\n [ 745.559112] mlx5_unregister_device+0x34/0x50 [mlx5_core]\n [ 745.559686] mlx5_uninit_one+0x46/0xf0 [mlx5_core]\n [ 745.560203] remove_one+0x4e/0xd0 [mlx5_core]\n [ 745.560694] pci_device_remove+0x39/0xa0\n [ 745.561112] device_release_driver_internal+0x1df/0x240\n [ 745.561631] driver_detach+0x47/0x90\n [ 745.562022] bus_remove_driver+0x84/0x100\n [ 745.562444] pci_unregister_driver+0x3b/0x90\n [ 745.562890] mlx5_cleanup+0xc/0x1b [mlx5_core]\n [ 745.563415] __x64_sys_delete_module+0x14d/0x2f0\n [ 745.563886] ? kmem_cache_free+0x1b0/0x460\n [ 745.564313] ? lockdep_hardirqs_on_prepare+0xe2/0x190\n [ 745.564825] do_syscall_64+0x6d/0x140\n [ 745.565223] entry_SYSCALL_64_after_hwframe+0x4b/0x53\n [ 745.565725] RIP: 0033:0x7f1579b1288b",
"id": "GHSA-wxqq-8jjm-6pjm",
"modified": "2025-11-03T21:31:33Z",
"published": "2024-11-07T12:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50146"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3955b77494c3c7d14873b1db67e7e00c46a714db"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4dbc1d1a9f39c3711ad2a40addca04d07d9ab5d0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6fe973c8873c998734a050f366b28facc03d32a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/db84cb4c8c565e6d4de84b23c2818b63991adfdd"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WXV8-6X37-53R6
Vulnerability from github – Published: 2023-07-24 18:30 – Updated: 2024-08-27 21:31A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
{
"affected": [],
"aliases": [
"CVE-2023-32252"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-24T16:15:11Z",
"severity": "HIGH"
},
"details": "A flaw was found in the Linux kernel\u0027s ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.",
"id": "GHSA-wxv8-6x37-53r6",
"modified": "2024-08-27T21:31:10Z",
"published": "2023-07-24T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32252"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-32252"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2219815"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231124-0001"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-20590"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WXWQ-C95X-686R
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-07-16 12:32In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw88: check for PCI upstream bridge existence
pci_upstream_bridge() returns NULL if the device is on a root bus. If 8821CE is installed in the system with such a PCI topology, the probing routine will crash. This has probably been unnoticed as 8821CE is mostly supplied in laptops where there is a PCI-to-PCI bridge located upstream from the device. However the card might be installed on a system with different configuration.
Check if the bridge does exist for the specific workaround to be applied.
Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.
{
"affected": [],
"aliases": [
"CVE-2026-46092"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:30Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: check for PCI upstream bridge existence\n\npci_upstream_bridge() returns NULL if the device is on a root bus. If\n8821CE is installed in the system with such a PCI topology, the probing\nroutine will crash. This has probably been unnoticed as 8821CE is mostly\nsupplied in laptops where there is a PCI-to-PCI bridge located upstream\nfrom the device. However the card might be installed on a system with\ndifferent configuration.\n\nCheck if the bridge does exist for the specific workaround to be applied.\n\nFound by Linux Verification Center (linuxtesting.org) with Svace static\nanalysis tool.",
"id": "GHSA-wxwq-c95x-686r",
"modified": "2026-07-16T12:32:19Z",
"published": "2026-05-27T15:33:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46092"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/000134a20bbf89b1152520a2eef71f91fdb83a5b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3b89b4c095804c478d50376285e66700cf3c045f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3bbbb56204f7359ce2139a9341b43b52a186261c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/959c13da6c36167ce1016d400a6104d2367f686e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb101d2abdcccb514ca4fccd3b278dd8267374f6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WXWX-RGHM-5HM2
Vulnerability from github – Published: 2026-01-02 15:30 – Updated: 2026-01-05 21:30A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later
{
"affected": [],
"aliases": [
"CVE-2025-52431"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-02T15:16:00Z",
"severity": "LOW"
},
"details": "A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later",
"id": "GHSA-wxwx-rghm-5hm2",
"modified": "2026-01-05T21:30:29Z",
"published": "2026-01-02T15:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52431"
},
{
"type": "WEB",
"url": "https://www.qnap.com/en/security-advisory/qsa-25-50"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-WXXM-77V6-P8HQ
Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-24 00:32In the Linux kernel, the following vulnerability has been resolved:
mm/damon/lru_sort: handle ctx allocation failure
DAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init function. damon_lru_sort_enabled_store() wrongly assumes the allocation will always succeed once tried. If the damon_ctx allocation was failed, therefore, code execution reaches to damon_commit_ctx() while 'ctx' is NULL. As a result, it dereferences the NULL 'ctx' pointer. Avoid the NULL dereference by returning -ENOMEM if 'ctx' is NULL.
{
"affected": [],
"aliases": [
"CVE-2026-53335"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T14:16:41Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/lru_sort: handle ctx allocation failure\n\nDAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init\nfunction. damon_lru_sort_enabled_store() wrongly assumes the allocation\nwill always succeed once tried. If the damon_ctx allocation was failed,\ntherefore, code execution reaches to damon_commit_ctx() while \u0027ctx\u0027 is\nNULL. As a result, it dereferences the NULL \u0027ctx\u0027 pointer. Avoid the\nNULL dereference by returning -ENOMEM if \u0027ctx\u0027 is NULL.",
"id": "GHSA-wxxm-77v6-p8hq",
"modified": "2026-07-24T00:32:32Z",
"published": "2026-07-01T15:35:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53335"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d48f15659395bf1381114f01be91bc68e0be46a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab04340b5ae5d52c1d46b750538febcde9d889e7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/daab1996431a71f43219dcac48ecc9ad2aad3f1c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X236-J29M-67WP
Vulnerability from github – Published: 2025-03-12 00:31 – Updated: 2025-03-12 00:31In the Linux kernel, the following vulnerability has been resolved:
ASoC: rt711-sdca: fix kernel NULL pointer dereference when IO error
The initial settings will be written before the codec probe function. But, the rt711->component doesn't be assigned yet. If IO error happened during initial settings operations, it will cause the kernel panic. This patch changed component->dev to slave->dev to fix this issue.
{
"affected": [],
"aliases": [
"CVE-2022-49615"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:36Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: rt711-sdca: fix kernel NULL pointer dereference when IO error\n\nThe initial settings will be written before the codec probe function.\nBut, the rt711-\u003ecomponent doesn\u0027t be assigned yet.\nIf IO error happened during initial settings operations, it will cause the kernel panic.\nThis patch changed component-\u003edev to slave-\u003edev to fix this issue.",
"id": "GHSA-x236-j29m-67wp",
"modified": "2025-03-12T00:31:46Z",
"published": "2025-03-12T00:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49615"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1df793d479bef546569fc2e409ff8bb3f0fb8e99"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/269be8b2907378adf72d7347cfa43ef230351a06"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7bb71133cae88d3003a3490b97864af76533072b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X274-3J7P-QFPP
Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes
In nv17_tv_get_ld_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd.
{
"affected": [],
"aliases": [
"CVE-2024-41095"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T16:15:04Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes\n\nIn nv17_tv_get_ld_modes(), the return value of drm_mode_duplicate() is\nassigned to mode, which will lead to a possible NULL pointer dereference\non failure of drm_mode_duplicate(). Add a check to avoid npd.",
"id": "GHSA-x274-3j7p-qfpp",
"modified": "2025-11-04T00:31:04Z",
"published": "2024-07-29T18:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41095"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0d17604f2e44b3df21e218fe8fb3b836d41bac49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/259549b2ccf795b7f91f7b5aba47286addcfa389"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/66edf3fb331b6c55439b10f9862987b0916b3726"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9289cd3450d1da3e271ef4b054d4d2932c41243e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bdda5072494f2a7215d94fc4124ad1949a218714"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cb751e48bbcffd292090f7882b23b215111b3d72"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dbd75f32252508ed6c46c3288a282c301a57ceeb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f95ed0f54b3d3faecae1140ddab854f904a6e7c8"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X2FC-9W3J-84R4
Vulnerability from github – Published: 2025-11-24 15:30 – Updated: 2025-11-24 15:30NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.
{
"affected": [],
"aliases": [
"CVE-2025-65493"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-24T14:15:46Z",
"severity": "HIGH"
},
"details": "NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.",
"id": "GHSA-x2fc-9w3j-84r4",
"modified": "2025-11-24T15:30:28Z",
"published": "2025-11-24T15:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65493"
},
{
"type": "WEB",
"url": "https://github.com/obgm/libcoap/issues/1743"
},
{
"type": "WEB",
"url": "https://github.com/obgm/libcoap/pull/1750"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X2GP-P6CX-82P9
Vulnerability from github – Published: 2024-04-30 00:30 – Updated: 2024-11-12 18:30The O-RAN E2T I-Release buildPrometheusList function can have a NULL pointer dereference because peerInfo can be NULL.
{
"affected": [],
"aliases": [
"CVE-2024-34044"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-30T00:15:07Z",
"severity": "MODERATE"
},
"details": "The O-RAN E2T I-Release buildPrometheusList function can have a NULL pointer dereference because peerInfo can be NULL.",
"id": "GHSA-x2gp-p6cx-82p9",
"modified": "2024-11-12T18:30:50Z",
"published": "2024-04-30T00:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34044"
},
{
"type": "WEB",
"url": "https://jira.o-ran-sc.org/browse/RIC-1043"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-X2GQ-QH39-X424
Vulnerability from github – Published: 2022-05-14 03:56 – Updated: 2025-04-12 13:02The exif_process_user_comment function in ext/exif/exif.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted JPEG image.
{
"affected": [],
"aliases": [
"CVE-2016-6292"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-07-25T14:59:00Z",
"severity": "MODERATE"
},
"details": "The exif_process_user_comment function in ext/exif/exif.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted JPEG image.",
"id": "GHSA-x2gq-qh39-x424",
"modified": "2025-04-12T13:02:52Z",
"published": "2022-05-14T03:56:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6292"
},
{
"type": "WEB",
"url": "https://bugs.php.net/72618"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201611-22"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207170"
},
{
"type": "WEB",
"url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=41131cd41d2fd2e0c2f332a27988df75659c42e4"
},
{
"type": "WEB",
"url": "http://git.php.net/?p=php-src.git;a=commit;h=41131cd41d2fd2e0c2f332a27988df75659c42e4"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2016/07/24/2"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-5.php"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-7.php"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3631"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/92078"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036430"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-56
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.