What is CVE-2023-44488?

CVE-2023-44488 is a high-severity vulnerability in Webmproject Libvpx, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2023-09-30.

How severe is CVE-2023-44488?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-44488 known to be exploited?

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

Vulnerability in Webmproject Libvpx

CVE-2023-44488

VP9 in libvpx before 1.13.1 mishandles widths, leading to a crash related to encoding.

Published 2023-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.019 (79.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Webmproject Libvpx
Debian Linux — versions 10.0, 11.0, 12.0
Fedoraproject Fedora — versions 37
Red Hat Enterprise Linux — versions 8.0, 9.0

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

github.com/webmproject/libvpx/commit/df9fd9d5b7325060b2b921558a1eb20ca7880937 (Patch)
github.com/webmproject/libvpx/commit/263682c9a29395055f3b3afe2d97be1828a6223f (Patch)
github.com/webmproject/libvpx/compare/v1.13.0...v1.13.1 (Patch)
github.com/webmproject/libvpx/releases/tag/v1.13.1 (Release Notes)
www.openwall.com/lists/oss-security/2023/09/30/4 (mailing-list, Mailing List, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/10/msg00001.html (mailing-list, Mailing List)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
security.gentoo.org/glsa/202310-04 (vendor-advisory, Third Party Advisory)
www.debian.org/security/2023/dsa-5518 (vendor-advisory, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2023-44488?: CVE-2023-44488 is a high-severity vulnerability in Webmproject Libvpx, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2023-09-30.
How severe is CVE-2023-44488?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-44488 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.