Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-12326

Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 30.3%
CVSS Severity
CVSS v3 Score 8.1
References
Products affected by CVE-2026-12326


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