Is CVE-2026-2806 actively exploited?

CVE-2026-2806 has no public evidence of in-the-wild exploitation as of 2026-02-25.

What is the CVSS score for CVE-2026-2806?

CVE-2026-2806 has a CVSS score of 9.1 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Patch guidance is available from mozilla security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-2806.

2 products: mozilla firefox, mozilla thunderbird.

Uninitialized memory in the Graphics: Text component. This vulnerability affects Firefox < 148 and Thunderbird < 148.

Primary Vendor: MOZILLA
Published: 2/24/2026
Last Modified: 2/25/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.