CVE-2023-1945

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-02 · updated 2026-10-24
Weakness: CWE-787

Description

Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10.

Affected products

Mozilla Firefox ESR: before 102.10 — fixed in 102.10
Mozilla Thunderbird: before 102.10 — fixed in 102.10

How to fix

Upgrade to a fixed version: Mozilla Firefox ESR 102.10; Mozilla Thunderbird 102.10. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1777588
https://www.mozilla.org/security/advisories/mfsa2023-14/
https://www.mozilla.org/security/advisories/mfsa2023-15/
https://bugzilla.mozilla.org/show_bug.cgi?id=1777588
https://www.mozilla.org/security/advisories/mfsa2023-14/
https://www.mozilla.org/security/advisories/mfsa2023-15/

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