CVE-2023-51791

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.

Published: 2024-04-19 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-51791 is rated Low Risk (38.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.28%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-51791

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 0.28% +0.24%
2 2025-11-21 0.07% 0.03% -0.03%
3 2025-11-18 — 0.07% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-51791

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-51791

OS Trackers for CVE-2023-51791

vendor priority summary link
alpine — CVE-2023-51791: 1 source package rows (ffmpeg); 15 state rows across 2 repos (3.23-community, edge-community); fixed 0, open 15. https://security.alpinelinux.org/vuln/CVE-2023-51791
debian unimportant CVE-2023-51791 unimportant priority: Debian including 1 source packages (ffmpeg), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-51791
suse high CVE-2023-51791 severity important: SUSE including 48 source package names (ffmpeg, ffmpeg-4, …), 317 product×package rows across 19 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS, … (19 product lines)): Known Not Affected 317. https://www.suse.com/security/cve/CVE-2023-51791/
ubuntu medium CVE-2023-51791 medium priority: Ubuntu including 2 source packages (ffmpeg, libav), 19 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 9, DNE 7, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2023-51791

Affected software / configurations for CVE-2023-51791

Vendor Product Version Raw CPE
ffmpeg ffmpeg 7.0 cpe:2.3:a:ffmpeg:ffmpeg:7.0:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.0.1 cpe:2.3:a:ffmpeg:ffmpeg:7.0.1:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.0.2 cpe:2.3:a:ffmpeg:ffmpeg:7.0.2:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.0.3 cpe:2.3:a:ffmpeg:ffmpeg:7.0.3:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.1 cpe:2.3:a:ffmpeg:ffmpeg:7.1:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.1 cpe:2.3:a:ffmpeg:ffmpeg:7.1:dev:*:*:*:*:*:*
ffmpeg ffmpeg 7.1.1 cpe:2.3:a:ffmpeg:ffmpeg:7.1.1:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.1.2 cpe:2.3:a:ffmpeg:ffmpeg:7.1.2:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.1.3 cpe:2.3:a:ffmpeg:ffmpeg:7.1.3:*:*:*:*:*:*:*
ffmpeg ffmpeg 7.2 cpe:2.3:a:ffmpeg:ffmpeg:7.2:dev:*:*:*:*:*:*
ffmpeg ffmpeg 8.0 cpe:2.3:a:ffmpeg:ffmpeg:8.0:*:*:*:*:*:*:*
ffmpeg ffmpeg 8.0.1 cpe:2.3:a:ffmpeg:ffmpeg:8.0.1:*:*:*:*:*:*:*
ffmpeg ffmpeg 8.1 cpe:2.3:a:ffmpeg:ffmpeg:8.1:dev:*:*:*:*:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

References for CVE-2023-51791

URL Tags
https://ffmpeg.org/ Product
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6G7EYH2JAK5OJPVNC6AXYQ5K7YGYNCDN/ Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPETICRXUOGRIM4U3BCRTIKE3IZWCSBT/ Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LE3ASLH6QF2E5OVJI5VA3JSEPJFFFMNY/ Mailing List
https://trac.ffmpeg.org/ticket/10738 Issue Tracking
https://lists.fedoraproject.org/archives/list/[email protected]/message/6G7EYH2JAK5OJPVNC6AXYQ5K7YGYNCDN/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/IPETICRXUOGRIM4U3BCRTIKE3IZWCSBT/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/LE3ASLH6QF2E5OVJI5VA3JSEPJFFFMNY/ Mailing List
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