CVE-2018-18512

9.8 criticalEPSS 1.6%

Critical (9.8) in mozilla thunderbird. EPSS 1.6% chance of exploitation in the next 30 days.

A use-after-free vulnerability can occur while playing a sound notification in Thunderbird. The memory storing the sound data is immediately freed, although the sound is still being played asynchronously, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2019-04-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1482659
https://www.mozilla.org/security/advisories/mfsa2019-03/
https://bugzilla.mozilla.org/show_bug.cgi?id=1482659
https://www.mozilla.org/security/advisories/mfsa2019-03/

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