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4.8 Medium

CVE-2025-4087 A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null…

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.

Affected products and versions

Product Affected versions Fixed in
Firefox 138 earliest → < 138 138
Firefox 128.10 earliest → < 128.10 128.10
Firefox ESR 128.10 earliest → < 128.10 128.10
Thunderbird 138 earliest → < 138 138
Thunderbird 128.10 earliest → < 128.10 128.10

References

Timeline

  1. Published
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