CVE-2018-5144

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. This vulnerability affects Firefox ESR < 52.7 and Thunderbird < 52.7.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-5144

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-5144.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201803-22

OS impact

OSVersionStatusFixed in
arch archfixed52.7.0-1
suse slesaffected
debian debianbookwormfixed52.7.0esr-1
debian debianbullseyefixed52.7.0esr-1
debian debianforkyfixed52.7.0esr-1
debian debiansidfixed52.7.0esr-1
debian debiantrixiefixed52.7.0esr-1

References

Verify integrity in audit chain (admin only). AS-IS.