CVE-2018-5145

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

Description

Memory safety bugs were reported in Firefox ESR 52.6. 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 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-2018-5145

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-5145.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.