Common Weakness Enumeration

CWE-121

Allowed

Stack-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

5818 vulnerabilities reference this CWE, most recent first.

CVE-2026-77217 (GCVE-0-2026-77217)

Vulnerability from cvelistv5 – Published: 2026-08-28 15:34 – Updated: 2026-09-01 20:28
VLAI
Title
PLANET GS-4210-16P2S V3 Stack Buffer Overflow and NULL Pointer Dereference via dispatcher.cgi RADIUS Handlers
Summary
PLANET GS-4210-16P2S V3 firmware before 3.441b260626 contains authenticated stack buffer overflow and null pointer dereference vulnerabilities in /cgi-bin/dispatcher.cgi. The web_radiusSrv*_post family of handlers copies the radKey, radKey_0, radDftParamKey, radName, and radIp POST parameters into fixed-size stack buffers without length validation, and additionally dereferences radName and radIp without verifying their presence in the request. A remote authenticated attacker can send crafted requests to crash the CGI process or web management service, resulting in denial of service.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:23 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
PLANET Technology Corp. PLANET GS-4210-16P2S V3 Affected: 0 , < 3.441b260626 (custom)
Create a notification for this product.
Date Public
2026-08-27 00:00
Credits
Jincheng Wang (@winmt) Professor Le Yu of Nanjing University of Posts and Telecommunications Professor Xiapu Luo of The Hong Kong Polytechnic University
Show details on NVD website
To clipboard 

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CVE-2026-77148 (GCVE-0-2026-77148)

Vulnerability from cvelistv5 – Published: 2026-08-20 18:15 – Updated: 2026-08-20 19:46
VLAI
Title
Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow
Summary
A vulnerability was found in Comfast CF-N1-S 2.6.0.1. This impacts the function sub_44B50C of the file /cgi-bin/mbox-config?method=SET&section=ptest_channel of the component Web Management. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 19:46 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/393733 vdb-entrytechnical-description
https://vuldb.com/vuln/393733/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-77148 third-party-advisory
https://vuldb.com/submit/880910 third-party-advisory
https://github.com/AdminSafe/CVE/issues/7 exploitissue-tracking
Impacted products
Vendor Product Version
Comfast CF-N1-S Affected: 2.6.0.1
    cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
010hex (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-77022 (GCVE-0-2026-77022)

Vulnerability from cvelistv5 – Published: 2026-08-20 16:45 – Updated: 2026-08-21 21:47
VLAI
Title
Comfast CF-N1-S SSID Configuration mbox-config sub_44B438 stack-based overflow
Summary
A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function sub_44B438 of the file /cgi-bin/mbox-config?method=SET&section=ptest_ssid of the component SSID Configuration. The manipulation of the argument ssid results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
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CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 21:39 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/393637 vdb-entrytechnical-description
https://vuldb.com/vuln/393637/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-77022 third-party-advisory
https://vuldb.com/submit/880599 third-party-advisory
https://github.com/AdminSafe/CVE/issues/5 exploitissue-tracking
Impacted products
Vendor Product Version
Comfast CF-N1-S Affected: 2.6.0.1
    cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
010hex (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-76879 (GCVE-0-2026-76879)

Vulnerability from cvelistv5 – Published: 2026-08-19 22:44 – Updated: 2026-09-17 18:44
VLAI
Title
Stack-based Buffer Overflow in Wireshark
Summary
C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:08 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.8 (semver)
Affected: 4.4.0 , < 4.4.18 (semver)
Create a notification for this product.
Credits
Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab & TAMU), Igor Morgenstern)
Show details on NVD website
To clipboard 

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CVE-2026-76869 (GCVE-0-2026-76869)

Vulnerability from cvelistv5 – Published: 2026-09-15 21:58 – Updated: 2026-09-17 19:27
VLAI
Title
Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in reboot_timer_set.cgi
Summary
Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in reboot_timer_set.cgi caused by improper sscanf token parsing. Attackers can exploit this flaw by submitting crafted input to the affected endpoint to corrupt stack memory.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 18:57 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Netcore NR255-V Affected: 1.5.130703 (custom)
Create a notification for this product.
Date Public
2026-09-04 00:00
Credits
Zhou Ao Yin Luxing Jiang Yuxuan Liu Xin @Nebusec
Show details on NVD website
To clipboard 

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CVE-2026-76861 (GCVE-0-2026-76861)

Vulnerability from cvelistv5 – Published: 2026-09-15 21:57 – Updated: 2026-09-21 18:13
VLAI
Title
Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in ntools_tcpdump_start_set.cgi
Summary
Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in ntools_tcpdump_start_set.cgi caused by an unsized sprintf call when processing form values. An attacker can submit crafted input to this cgi endpoint to overflow the stack buffer and potentially execute arbitrary code.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 18:13 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Netcore NR255-V Affected: 1.5.130703 (custom)
Create a notification for this product.
Date Public
2026-09-04 00:00
Credits
Zhou Ao Yin Luxing Jiang Yuxuan Liu Xin @Nebusec
Show details on NVD website
To clipboard 

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CVE-2026-76860 (GCVE-0-2026-76860)

Vulnerability from cvelistv5 – Published: 2026-09-15 21:57 – Updated: 2026-09-16 19:31
VLAI
Title
Netcore NR255-V 1.5.130703 Stack-Based Buffer Overflow in wake_up_set.cgi via MAC and ID Tokenization
Summary
Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wake_up_set.cgi caused by unbounded tokenization of MAC and ID input. Attackers can supply crafted MAC and ID values to the affected endpoint to overflow the stack buffer and corrupt program memory.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 19:30 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Netcore NR255-V Affected: 1.5.130703 (custom)
Create a notification for this product.
Date Public
2026-09-04 00:00
Credits
Zhou Ao Yin Luxing Jiang Yuxuan Liu Xin @Nebusec
Show details on NVD website
To clipboard 

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CVE-2026-76590 (GCVE-0-2026-76590)

Vulnerability from cvelistv5 – Published: 2026-08-19 21:45 – Updated: 2026-08-21 16:47
VLAI
Title
TRENDnet TEW-755AP ssi wan.cgi stack-based overflow
Summary
A vulnerability was identified in TRENDnet TEW-755AP up to 20260702. Affected by this issue is some unknown functionality of the file /cgi-bin/wan.cgi of the component ssi. Such manipulation of the argument cameo.wan.wan_pppoe_password_00 leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 16:47 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
TRENDnet TEW-755AP Affected: 20260702
    cpe:2.3:o:trendnet:tew-755ap_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
fuhanhan2015 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-76589 (GCVE-0-2026-76589)

Vulnerability from cvelistv5 – Published: 2026-08-19 21:30 – Updated: 2026-08-25 14:18
VLAI
Title
TRENDnet TEW-755AP mycli FUN_401000 stack-based overflow
Summary
A vulnerability was found in TRENDnet TEW-755AP up to 20260702. Affected is the function FUN_401000 of the file /sbin/mycli. The manipulation of the argument ssid results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:18 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
TRENDnet TEW-755AP Affected: 20260702
    cpe:2.3:o:trendnet:tew-755ap_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
fuhanhan2015 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-76584 (GCVE-0-2026-76584)

Vulnerability from cvelistv5 – Published: 2026-08-19 21:00 – Updated: 2026-08-20 14:03
VLAI
Title
TRENDnet TV-IP751WIC alphapd set_time.cgi stack-based overflow
Summary
A security flaw has been discovered in TRENDnet TV-IP751WIC 11.03.03. Affected by this issue is some unknown functionality of the file /cgi-bin/admin/set_time.cgi of the component alphapd. The manipulation of the argument Currenttime results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:03 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
TRENDnet TV-IP751WIC Affected: 11.03.03
    cpe:2.3:a:trendnet:tv-ip751wic:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
fuhanhan2015 (VulDB User)
Show details on NVD website
To clipboard 

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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R",
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          }
        },
        {
          "cvssV2_0": {
            "baseScore": 9,
            "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
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          }
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      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "Stack-based Buffer Overflow",
              "lang": "en",
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        {
          "descriptions": [
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              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
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      "references": [
        {
          "name": "VDB-393043 | TRENDnet TV-IP751WIC alphapd set_time.cgi stack-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
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        {
          "name": "VDB-393043 | CTI Indicators (IOB, IOC, IOA)",
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            "permissions-required"
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          "url": "https://vuldb.com/cve/CVE-2026-76584"
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          "name": "Submit #877793 | TRENDnet TV-IP751WIC TV-IP751WIC Stack-based Buffer Overflow",
          "tags": [
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          "url": "https://vuldb.com/submit/877793"
        },
        {
          "tags": [
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          "url": "https://github.com/meishigana/CVE/tree/main/team15_20260702/07_751wic-apd-time-cmdi"
        },
        {
          "tags": [
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          "url": "https://github.com/meishigana/CVE/blob/main/team15_20260702/07_751wic-apd-time-cmdi/poc/poc-time-injection.py"
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      ],
      "timeline": [
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          "time": "2026-08-19T00:00:00.000Z",
          "value": "Advisory disclosed"
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        {
          "lang": "en",
          "time": "2026-08-19T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-19T16:13:30.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "TRENDnet TV-IP751WIC alphapd set_time.cgi stack-based overflow",
      "x_generator": [
        "VulDB PVTS v202608"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-76584",
    "datePublished": "2026-08-19T21:00:09.812Z",
    "dateReserved": "2026-08-19T14:08:15.432Z",
    "dateUpdated": "2026-08-20T14:03:40.620Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}
Mitigation MIT-10
Operation Build and Compilation

Strategy: Environment Hardening

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation
Implementation

Implement and perform bounds checking on input.

Mitigation
Implementation

Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.

Mitigation MIT-11
Operation Build and Compilation

Strategy: Environment Hardening

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].

No CAPEC attack patterns related to this CWE.

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