CVE-2026-2802

low-risk
Published 2026-02-24

Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.2/10 Medium
NETWORK / HIGH complexity

Affected Products (2)

Affected Vendors

Mozilla

References (3)

Permissions Required https://bugzilla.mozilla.org/show_bug.cgi?id=2011069
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2026-13/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2026-16/
21
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low