vulnerability
MFSA2025-28 Firefox: Security Vulnerabilities fixed in Firefox 138 (CVE-2025-4087)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Apr 29, 2025 | Apr 30, 2025 | Apr 15, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Apr 29, 2025
Added
Apr 30, 2025
Modified
Apr 15, 2026
Description
A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Thunderbird 138, and Thunderbird 128.10.
Solution
mozilla-firefox-upgrade-138_0
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