VulnerabilityPublished 18 Feb 2026Updated 5 Nov 2026

CVE-2025-71231: Linux kernel · crypto: iaa – Fix out-of-bounds index in find_empty_iaa_compression_mode

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in de16f5bca05cace238d237791ed1b6e9d22dab60 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 23:24 UTC

Severity

Unrated

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

Thin evidence

One scorer or none

EPSS

0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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 de16f5bca05cace238d237791ed1b6e9d22dab60, d75207465eed20bc9b0daa4a0927de9568996067, c77b33b58512708bd5603f48465f018c8b748847 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 18 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 Linux kernel to de16f5bca05cace238d237791ed1b6e9d22dab60, d75207465eed20bc9b0daa4a0927de9568996067, c77b33b58512708bd5603f48465f018c8b748847 or 48329301969f6d21b2ef35f678e40f72b59eac94.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ b190447e0fa3ef7355480d641d078962e03768b4, < de16f5bca05cace238d237791ed1b6e9d22dab60	Fixed in de16f5bca05cace238d237791ed1b6e9d22dab60
LinuxLinux	Affected ≥ b190447e0fa3ef7355480d641d078962e03768b4, < d75207465eed20bc9b0daa4a0927de9568996067	Fixed in d75207465eed20bc9b0daa4a0927de9568996067
LinuxLinux	Affected ≥ b190447e0fa3ef7355480d641d078962e03768b4, < c77b33b58512708bd5603f48465f018c8b748847	Fixed in c77b33b58512708bd5603f48465f018c8b748847
LinuxLinux	Affected ≥ b190447e0fa3ef7355480d641d078962e03768b4, < 48329301969f6d21b2ef35f678e40f72b59eac94	Fixed in 48329301969f6d21b2ef35f678e40f72b59eac94
LinuxLinux	Affected =6.8	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode The local variable 'i' is initialized with -EINVAL, but the for loop immediately overwrites it and -EINVAL is never returned. If no empty compression mode can be found, the function would return the out-of-bounds index IAA_COMP_MODES_MAX, which would cause an invalid array access in add_iaa_compression_mode(). Fix both issues by returning either a valid index or -EINVAL.

References

Community reviews

Loading reviews…