7.3 High
CVE-2026-7323
Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1
MozillaFirefox
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
0.5%probability of exploitation in the next 30 days
Higher than 39% of scored CVEs
SeverityCVSS
7.3High
Description NVD
Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
Coverage 1 article · 1 outlet
- Chrome 147 and Firefox 150 patch critical memory safety flawsSecurityWeek · first in our coverage · mentions it in passing