Bug 2403771 (CVE-2025-11721) - CVE-2025-11721 thunderbird: firefox: Memory safety bug fixed in Firefox 144 and Thunderbird 144
Summary: CVE-2025-11721 thunderbird: firefox: Memory safety bug fixed in Firefox 144 a...
Keywords:
Status: NEW
Alias: CVE-2025-11721
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-14 13:02 UTC by OSIDB Bzimport
Modified: 2025-10-15 09:18 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2025-10-14 13:02:26 UTC 
Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144 and Thunderbird < 144.
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