CVE-2023-44488

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

Published: 2023-09-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-44488 is rated Moderate Risk (58.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.45%). Mandatory action: Review affected assets and schedule remediation.

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-2023-44488

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 2026-04-08 1.46% 1.45% -0.02%
2 2026-03-21 1.45% 1.46% +0.02%
3 2025-12-28 1.45%

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-44488

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
No account or special rights needed—anonymous or random user is enough.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-44488

OS Trackers for CVE-2023-44488

vendor priority summary link
alpine high CVE-2023-44488: 1 source package rows (libvpx); 7 state rows across 3 repos (3.18-community, 3.22-community, edge-community); fixed 0, open 7. https://security.alpinelinux.org/vuln/CVE-2023-44488
debian not yet assigned CVE-2023-44488 not yet assigned priority: Debian including 1 source packages (libvpx), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-44488
gentoo high CVE-2023-44488: 1 GLSA(s) (202310-04), 1 atom(s) (media-libs/libvpx); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-44488
redhat high https://access.redhat.com/security/cve/CVE-2023-44488
suse high CVE-2023-44488 severity important: SUSE including 25 source package names (0.3.2-1.2:libvpx7-1.11.0-150400.3.7.1, 0.3.32-3.4:libvpx7-1.11.0-150400.3.7.1, …), 68 product×package rows across 31 product lines (Container containers/lmcache-vllm-openai, Container containers/open-webui, … (31 product lines)): Fixed 54, Known Not Affected 14. https://www.suse.com/security/cve/CVE-2023-44488/
ubuntu medium CVE-2023-44488 medium priority: Ubuntu including 10 source packages (chromium-browser, firefox, …), 120 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 57, ignored 28, not-affected 19, released 13, needs-triage 3. https://ubuntu.com/security/CVE-2023-44488

Affected software / configurations for CVE-2023-44488

Vendor Product Version Raw CPE
webmproject libvpx < 1.13.1 cpe:2.3:a:webmproject:libvpx:*:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
debian debian_linux 12.0 cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

References for CVE-2023-44488

URL Tags
http://www.openwall.com/lists/oss-security/2023/09/30/4 Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2241806 Issue Tracking Patch Third Party Advisory
https://github.com/webmproject/libvpx/commit/263682c9a29395055f3b3afe2d97be1828a6223f Patch
https://github.com/webmproject/libvpx/commit/df9fd9d5b7325060b2b921558a1eb20ca7880937 Patch
https://github.com/webmproject/libvpx/compare/v1.13.0...v1.13.1 Patch
https://github.com/webmproject/libvpx/releases/tag/v1.13.1 Release Notes
https://lists.debian.org/debian-lts-announce/2023/10/msg00001.html Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE7F54W5O5RS4ZMAAC7YK3CZWQXIDSKB/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202310-04 Third Party Advisory
https://www.debian.org/security/2023/dsa-5518 Third Party Advisory
cvelogic Threat Intelligence