VulnerabilityPublished 14 Feb 2026Updated 5 Nov 2026

CVE-2025-71222: Linux kernel · wifi: wlcore: ensure skb headroom before skb_push

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in e75665dd096819b1184087ba5718bd93beafff51 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in e75665dd096819b1184087ba5718bd93beafff51, cd89a4656c03f8db0c57350aaec69cd3cfaa3522, b167312390fdd461c81ead516f2b0b44e83a9edb +4

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 5 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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 ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < e75665dd096819b1184087ba5718bd93beafff51	Fixed in e75665dd096819b1184087ba5718bd93beafff51
LinuxLinux	Affected ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < cd89a4656c03f8db0c57350aaec69cd3cfaa3522	Fixed in cd89a4656c03f8db0c57350aaec69cd3cfaa3522
LinuxLinux	Affected ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < b167312390fdd461c81ead516f2b0b44e83a9edb	Fixed in b167312390fdd461c81ead516f2b0b44e83a9edb
LinuxLinux	Affected ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < 88295a55fefe5414e64293638b6f7549646e58ed	Fixed in 88295a55fefe5414e64293638b6f7549646e58ed
LinuxLinux	Affected ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < 745a0810dbc96a0471e5f5e627ba1e978c3116d4	Fixed in 745a0810dbc96a0471e5f5e627ba1e978c3116d4
LinuxLinux	Affected ≥ f5fc0f86b02afef1119b523623b4cde41475bc8c, < 689a7980e4788e13e766763d53569fb78dea2513	Fixed in 689a7980e4788e13e766763d53569fb78dea2513

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: ensure skb headroom before skb_push This avoids occasional skb_under_panic Oops from wl1271_tx_work. In this case, headroom is less than needed (typically 110 - 94 = 16 bytes).

References

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