CVE-2025-8036 (GCVE-0-2025-8036)

Vulnerability from cvelistv5 – Published: 2025-07-22 20:49 – Updated: 2025-11-04 15:57
VLAI?
Summary
Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1.
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 141 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 140.1 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 141 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 140.1 (custom)
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Credits
Viktor Bocz
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Sightings

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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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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