Is CVE-2023-51791 in the CISA KEV catalog?

No. CVE-2023-51791 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-51791?

CVE-2023-51791 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-51791?

CVE-2023-51791 has an EPSS score of 0.28% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-51791?

Upgrade ffmpeg on debian 13 to 7:7.0.1-3 or later.

CVE & CISA-KEV Catalog

CVE-2023-51791

HIGH

7.8

CVSS v3

NVD

Description

Buffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_parser.c in gen_alias_map.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

ffmpegDebian

Fixed in:7:7.0.1-3CVE-2023-51791

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.28%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Issue Tracking1

trac.ffmpeg.org

Mailing List6

Product1

ffmpeg.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-07.