CVE-2026-93793
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.
Severity
HIGH
CVSS score
8.8
(v3.1)
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-24 17:17:12.050000
Last modified
2026-10-30 13:21:02.800000
View original CVE JSON
{
"id": "CVE-2026-93793",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-24T17:17:12.050",
"lastModified": "2026-10-30T13:21:02.800",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: validate TX_CMD response layout\n\nTX_CMD parsing uses frame_count to walk status entries and then\nread the trailing SCD SSN. Make the minimum-length check follow\nthat exact runtime layout calculation before parsing the payload.\n\nFor new TX API, reject TX_CMD responses with frame_count != 1 and\nwarn/return in the aggregation handler to document that aggregated\naccounting is expected via BA notifications."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/net/wireless/intel/iwlwifi/mvm/tx.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c",
"lessThan": "658b5c00d653cdd72babc86791f6f6711190c740",
"versionType": "git",
"status": "affected"
},
{
"version": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c",
"lessThan": "5e871c03506c529d5fe372d099c1ad1465c7bc38",
"versionType": "git",
"status": "affected"
},
{
"version": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c",
"lessThan": "fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b",
"versionType": "git",
"status": "affected"
},
{
"version": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c",
"lessThan": "4d942dfc13aec393e003ab28ff58db744c26e6eb",
"versionType": "git",
"status": "affected"
},
{
"version": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c",
"lessThan": "8d70881707b47353359df57df12f6de67fdacdd2",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/net/wireless/intel/iwlwifi/mvm/tx.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "3.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.9",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.111",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.53",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9
}
]
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5e871c03506c529d5fe372d099c1ad1465c7bc38",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/658b5c00d653cdd72babc86791f6f6711190c740",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}