CVE-2018-5101

HIGH 7.5CVE-2018-5101 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2018-5101 is a HIGH (CVSS 7.5) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.1% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
firefox mozilla	`≤ 57.0.4`	No fix yet

Description

A use-after-free vulnerability can occur when manipulating floating "first-letter" style elements, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 58.

References

securityfocus.com/bid/102786 · Third Party Advisory
securitytracker.com/id/1040270 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
usn.ubuntu.com/3544-1 · Third Party Advisory
mozilla.org/security/advisories/mfsa2018-02 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

≤ 57.0.4

No fix yet

More vulnerabilities in firefox

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