CVE-2018-18502

CRITICAL 9.8CVE-2018-18502 · Published 05/02/2019 · updated 17/06/2026

In short

CVE-2018-18502 is a CRITICAL (CVSS 9.8) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 2.2%, higher than 82.2% of all vulnerabilities.
Fix: update to 65.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 65.0`	`65.0`

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 64. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 65.

References

securityfocus.com/bid/106773 · Third Party Advisory
usn.ubuntu.com/3874-1 · Third Party Advisory
mozilla.org/security/advisories/mfsa2019-01 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 65.0

65.0

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