CVE-2025-1013
MEDIUM severity · CVSS 6.5 · CWE-362
6.5CVSS MEDIUM
Summary
A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.mozilla.org/security/advisories/mfsa2025-07/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-09/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-10/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-11/Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1932555
- https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html