CVE-2025-4087 (GCVE-0-2025-4087)

Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2026-04-13 14:27
VLAI?
Title
Unsafe attribute access during XPath parsing
Summary
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.
Severity ?
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 128.10 , ≤ 128.* (rpm)
Unaffected: 138 , ≤ * (rpm)
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    Mozilla Thunderbird Unaffected: 128.10 , ≤ 128.* (rpm)
Unaffected: 138 , ≤ * (rpm)
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Credits
Ivan Fratric
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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