What is CVE-2024-31585?

CVE-2024-31585 is a medium-severity vulnerability in Ffmpeg, classified under Off-by-one Error. CVSS score: 5.3/10. Published 2024-04-17.

How severe is CVE-2024-31585?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2024-31585 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ffmpeg

CVE-2024-31585

FFmpeg version n5.1 to n6.1 was discovered to contain an Off-by-one Error vulnerability in libavfilter/avf_showspectrum.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Published 2024-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Ffmpeg
Fedoraproject Fedora — versions 38, 39, 40

Weakness classification (CWE)

CWE-193 — Off-by-one Error

Public proof-of-concept exploits

Tkwapong85/nessus-vulnerability-assessment-001

References

Frequently asked questions

What is CVE-2024-31585?: CVE-2024-31585 is a medium-severity vulnerability in Ffmpeg, classified under Off-by-one Error. CVSS score: 5.3/10. Published 2024-04-17.
How severe is CVE-2024-31585?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2024-31585 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.