CVE-2025-6436 Information

Jun 26, 2025 cve

Description

Memory safety bugs present in Firefox 139 and Thunderbird 139. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 140.

Reference

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1941377%2C1960948%2C1966187%2C1966505%2C1970764 https://www.mozilla.org/security/advisories/mfsa2025-51/

CNNVD-202506-3081 (Published: 2025-06-24)

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