CVE-2025-0247

critical · 9.8

Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 134 and Thunderbird 134.

9.8

CVSS

9.3%

EPSS (exploit prob.)

95th

EPSS percentile

2025-01-07

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-787

Affected products

Vendor	Product	Affected versions
mozilla	firefox	< 134.0
mozilla	thunderbird	< 134.0

Check a specific version with /api/v1/cve/match.

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1835193%2C1910021%2C1919803%2C1931576%2C1931948%2C1932173
https://www.mozilla.org/security/advisories/mfsa2025-01/
https://www.mozilla.org/security/advisories/mfsa2025-04/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-0247