CVE-2018-5156

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

Description

A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

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-2018-5156

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-5156.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201808-8

OS impact

OSVersionStatusFixed in
arch archfixed60.0-1
suse slesaffected
debian debiansidfixed61.0-1
debian debianbookwormfixed52.9.0esr-1
debian debianbullseyefixed52.9.0esr-1
debian debianforkyfixed52.9.0esr-1
debian debiantrixiefixed52.9.0esr-1

References

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