CVE-2025-11721 — Memory safety bug fixed in Firefox 144 and Thunderbird 144
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…
Published: 2025-10-14 · CVSS: 9.8 · CVSS 3.1
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 was fixed in Firefox 144 and Thunderbird 144.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7