Cyber Resilience

CVE-2024-31581

Critical

Published: 17 April 2024

Published
17 April 2024
Modified
04 November 2025
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0022 44.3th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-31581 is a critical-severity Improper Validation of Array Index (CWE-129) vulnerability in Fedoraproject Fedora. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 44.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

FFmpeg version n6.1 was discovered to contain an improper validation of array index vulnerability in libavcodec/cbs_h266_syntax_template.c. This vulnerability allows attackers to cause undefined behavior within the application.

CWE(s)
CWE-129

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

The improper array index validation in FFmpeg's H.266 parser allows crafted media files to trigger undefined behavior, facilitating exploitation for client execution (T1203) or application crashes leading to endpoint denial of service (T1499.004).

Affected Assets

ffmpeg
ffmpeg
6.1
fedoraproject
fedora
38, 39, 40

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References