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Linux Kernel CVE-2025-71231

HIGH
Out-of-bounds Read (CWE-125)
2026-02-18 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Buffer Overflow Information Disclosure Linux Red Hat Linux Kernel Suse
7.1
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-125
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK

1 technique across 1 tactic: Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

Exploitable via local access.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to compromise the affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

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.

RemediationAI

Monitor vendor advisories for a patch.

Affects your stack

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Technical ContextAI · show details

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

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Severity by source

NVD PRIMARY 7.1 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SUSE HIGH
Red Hat 6.6 MEDIUM

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

2
Patch released
Apr 09, 2026 - 08:30 nvd
Patch available
CVE Published
Feb 18, 2026 - 16:22 nvd
HIGH 7.1

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CVE-2025-71231 presents moderate security risk, a out-of-bounds read vulnerability rated CVSS 7.1. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.0%
Top 94% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS Vendor VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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Same weakness CWE-125 – Out-of-bounds Read

View all
CVE-2014-0160 HIGH POC
7.5
CVE-2016-5198 HIGH POC
8.8
CVE-2025-5777 CRITICAL POC
9.3
CVE-2016-1646 HIGH POC
8.8
CVE-2017-5030 HIGH POC
8.8
CVE-2016-4523 HIGH
7.5
CVE-2024-48456 HIGH POC
7.5
CVE-2024-48457 HIGH POC
7.5

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: High
Product Status
Container suse/sl-micro/6.0/base-os-container:2.1.3-7.105 Affected
Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.124 Affected
Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.146 Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.67 Affected
Container suse/sl-micro/6.1/base-os-container:2.2.1-5.90 Affected

References

Advisories & patches
ADVISORY https://ubuntu.com/security/notices/USN-8492-1 ADVISORY https://vuldb.com/?id.346543 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0962/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1041/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1081/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20667/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20711/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20713/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20720/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20772/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20794/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20819/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20838/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20845/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20872/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20873/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20876/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20931/ REF https://git.kernel.org/stable/c/48329301969f6d21b2ef35f678e40f72b59eac94 REF https://git.kernel.org/stable/c/c77b33b58512708bd5603f48465f018c8b748847 REF https://git.kernel.org/stable/c/d75207465eed20bc9b0daa4a0927de9568996067 REF https://git.kernel.org/stable/c/de16f5bca05cace238d237791ed1b6e9d22dab60

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