CVE-2026-13958

mediumCVSS 6.5covered by 2 sourcesfirst seen 2026-06-30

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

CSIRTS triage

What: This vulnerability is an uninitialized use issue in Codecs.
Who is affected: Deployments of Chromium-based browsers, including Microsoft Edge, are affected.
Urgency: Remediation is necessary as it could lead to potential exploitation, although it is currently not exploited.
Action: Update to the latest version of Chromium to mitigate this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch CVE-2026-13958

Get an email if CVE-2026-13958 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.

Exploitation outlook

Low exploitation risk0.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.

Advisory coverage (2)

unknownCVE-2026-13958: Chromium: CVE-2026-13958 Uninitialized Use in Codecsmsrc · 2026-07-02
mediumCVE-2026-13958: Uninitialized Use in Codecs in Google Chrome on Windows prior to 150.0.7871.47 allowed a remot…nvd · 2026-06-30

External references

NVD record for CVE-2026-13958

CVE.org record

Embed the live status

— this badge updates automatically when the KEV or exploit status changes. How to embed it →

[![CVE-2026-13958 status](https://www.csirts.com/badge/CVE-2026-13958)](https://www.csirts.com/cve/CVE-2026-13958)