CVE-2016-5263

high
Published 2016-08-05 · 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

The nsDisplayList::HitTest function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 mishandles rendering display transformation, which allows remote attackers to execute arbitrary code via a crafted web site that leverages "type confusion."

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-2016-5263

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-5263.html

vendor Authored 2026-05-27

Vendor advisory: security@mozilla.org — http://www.mozilla.org/security/announce/2016/mfsa2016-78.html

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debiansidfixed48.0-1
debian debianbookwormfixed45.3.0esr-1
debian debianbullseyefixed45.3.0esr-1
debian debianforkyfixed45.3.0esr-1
debian debiantrixiefixed45.3.0esr-1

Application impact

VendorProductVersionsFixed
mozilla mozillafirefox{"endIncluding":"47.0.1"}
mozilla mozillafirefox45.1.0
mozilla mozillafirefox45.1.1
mozilla mozillafirefox45.2.0
mozilla mozillafirefox45.3.0

References

CWEs

CWE-704

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