CVE-2016-2811

high
Published 2016-04-30 · Modified 2026-05-06
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2
6.8
VIR risk
8.8

Description

Use-after-free vulnerability in the ServiceWorkerInfo class in the Service Worker subsystem in Mozilla Firefox before 46.0 allows remote attackers to execute arbitrary code via vectors related to the BeginReading method.

Predictions

Exploit likelihood
92%
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-2016-2811

vendor Authored 2026-05-27

Vendor advisory: security@mozilla.org — http://www.mozilla.org/security/announce/2016/mfsa2016-42.html

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-2811.html

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debiansidfixed46.0-1
debian debianbookwormfixed0
debian debianbullseyefixed0
debian debianforkyfixed0
debian debiantrixiefixed0

Application impact

VendorProductVersionsFixed
mozilla mozillafirefox{"endIncluding":"45.0.2"}

References

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