CVE-2025-11721

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Source
https://cve.org/CVERecord?id=CVE-2025-11721
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11721.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-11721
Downstream
Related
Published
2025-10-14T13:15:38.520Z
Modified
2026-03-23T05:06:24.659416Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11721.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "143.0"
            },
            {
                "fixed": "144.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "143.0"
            },
            {
                "fixed": "144.0"
            }
        ]
    }
]