VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-90346: Linux kernel · wifi: nl80211: clean up color-change beacon data on errors

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in bbe3a69a7b64398dddd1c989e9a40eaa57616b33 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in bbe3a69a7b64398dddd1c989e9a40eaa57616b33, 927ee844c47ac2aef22c8f7a35f098ff576b398b, 5f47c9bc4a62e61f932a83680a796bc09ae48dd3 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ dc1e3cb8da8b414b37208b2fb6755fef8122504b, < bbe3a69a7b64398dddd1c989e9a40eaa57616b33	Fixed in bbe3a69a7b64398dddd1c989e9a40eaa57616b33
LinuxLinux	Affected ≥ dc1e3cb8da8b414b37208b2fb6755fef8122504b, < 927ee844c47ac2aef22c8f7a35f098ff576b398b	Fixed in 927ee844c47ac2aef22c8f7a35f098ff576b398b
LinuxLinux	Affected ≥ dc1e3cb8da8b414b37208b2fb6755fef8122504b, < 5f47c9bc4a62e61f932a83680a796bc09ae48dd3	Fixed in 5f47c9bc4a62e61f932a83680a796bc09ae48dd3
LinuxLinux	Affected ≥ dc1e3cb8da8b414b37208b2fb6755fef8122504b, < 4e0a67fbe3d9e2e1d6f81dfc607184c6b0abd3dd	Fixed in 4e0a67fbe3d9e2e1d6f81dfc607184c6b0abd3dd
LinuxLinux	Affected ≥ dc1e3cb8da8b414b37208b2fb6755fef8122504b, < 0ec1d14cf302ae7c23ec218527b2849a1fced3f4	Fixed in 0ec1d14cf302ae7c23ec218527b2849a1fced3f4
LinuxLinux	Affected =5.16	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: clean up color-change beacon data on errors nl80211_color_change() calls nl80211_parse_beacon() for the beacon_next template, which can allocate params.beacon_next.mbssid_ies and .rnr_ies. A parsing failure returned directly instead of using the out: cleanup, leaking any allocations completed before the error. Allocate the nested attribute table before parsing beacon_next. Its allocation failure can then return before beacon data exists, while a later parsing failure uses out: to release the parsed data.

References

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