CVE-2026-68439 (GCVE-0-2026-68439)
Vulnerability from cvelistv5 – Published: 2026-08-12 00:07 – Updated: 2026-08-17 05:05
VLAI
EPSS
VEX
Title
wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()
mt76_connac_get_he_phy_cap routine can theoretically return NULL so
check cap pointer before dereferencing it.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c948b5da6bbec742b433138e3e3f9537a85af2e5 , < 42288cca984fb72ad3ebe43d4e7fdce9dcabfdb5
(git)
Affected: c948b5da6bbec742b433138e3e3f9537a85af2e5 , < 313343ab8cab7417973e7bdd43d3c3e93044b447 (git) Affected: c948b5da6bbec742b433138e3e3f9537a85af2e5 , < 856f1588a2590e70b119e76c15315615a36aebc8 (git) Affected: c948b5da6bbec742b433138e3e3f9537a85af2e5 , < 8d1b6738c1ab48c086b17e7994034aca94258931 (git) |
|
| Linux | Linux |
Affected:
6.7
Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix) |
{
"containers": {
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"affected": [
{
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"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7925/mcu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
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"versionType": "git"
},
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
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},
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},
{
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"versionEndExcluding": "7.1.6",
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"vulnerable": true
},
{
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}
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"negate": false,
"operator": "OR"
}
]
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:05:36.346Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/42288cca984fb72ad3ebe43d4e7fdce9dcabfdb5"
},
{
"url": "https://git.kernel.org/stable/c/313343ab8cab7417973e7bdd43d3c3e93044b447"
},
{
"url": "https://git.kernel.org/stable/c/856f1588a2590e70b119e76c15315615a36aebc8"
},
{
"url": "https://git.kernel.org/stable/c/8d1b6738c1ab48c086b17e7994034aca94258931"
}
],
"title": "wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68439",
"datePublished": "2026-08-12T00:07:28.625Z",
"dateReserved": "2026-07-30T09:28:09.394Z",
"dateUpdated": "2026-08-17T05:05:36.346Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-68439",
"date": "2026-10-01",
"epss": "0.00209",
"percentile": "0.09983"
},
"nvd": {
"cve": {
"affected": [
{
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"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7925/mcu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"versionType": "git"
},
{
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"versionType": "git"
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{
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{
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],
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"vendor": "Linux",
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{
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{
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"status": "unaffected",
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"versionType": "semver"
},
{
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"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it."
}
],
"id": "CVE-2026-68439",
"lastModified": "2026-08-17T06:17:52.977",
"metrics": {},
"published": "2026-08-12T00:17:44.120",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/313343ab8cab7417973e7bdd43d3c3e93044b447"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/42288cca984fb72ad3ebe43d4e7fdce9dcabfdb5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/856f1588a2590e70b119e76c15315615a36aebc8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8d1b6738c1ab48c086b17e7994034aca94258931"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-08-31T11:44:07+00:00",
"cve": "CVE-2026-68439",
"id": "CVE-2026-68439",
"initial_release_date": "2026-08-12T00:00:00+00:00",
"product_status:known_affected": "183",
"product_status:known_not_affected": "94",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68439.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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