Memory Safety Bugs in Firefox by Mozilla
CVE-2026-8093

8.1HIGH

Key Information:

Vendor

Mozilla
Status
Firefox
Thunderbird
Vendor
CVE Published:
7 May 2026

What is CVE-2026-8093?

Memory safety bugs in Firefox 150.0.1 pose significant security risks due to potential memory corruption, which could allow attackers to execute arbitrary code. Mozilla has addressed these issues in Firefox 150.0.2, enhancing the browser's overall security. Users are encouraged to update to the latest version to mitigate any vulnerabilities associated with these memory safety issues.

Affected Version(s)

Firefox 150.0.2

Thunderbird 150.0.2

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1981270%2...
https://www.mozilla.org/security/advisories/mfsa2026-40/
https://www.mozilla.org/security/advisories/mfsa2026-43/

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andy Leiserson, Jan de Mooij, Michael Froman and the Mozilla Fuzzing Team
.