CVE-2016-9895

MEDIUM 6.1CVE-2016-9895 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2016-9895 is a MEDIUM (CVSS 6.1) vulnerability affecting firefox (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.6% of all vulnerabilities.
Fix: update to 45.6.0, 50.1 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 45.6.0< 50.1`	`45.6.050.1`
thunderbird mozilla	`< 45.6.0`	`45.6.0`

Description

Event handlers on "marquee" elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

References

rhn.redhat.com/errata/RHSA-2016-2946.html · Third Party Advisory
rhn.redhat.com/errata/RHSA-2016-2973.html · Third Party Advisory
securityfocus.com/bid/94885 · Third Party Advisory
securitytracker.com/id/1037461 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Exploit
security.gentoo.org/glsa/201701-15 · Third Party Advisory
debian.org/security/2017/dsa-3757 · Third Party Advisory
mozilla.org/security/advisories/mfsa2016-94 · Vendor Advisory
mozilla.org/security/advisories/mfsa2016-95 · Vendor Advisory
mozilla.org/security/advisories/mfsa2016-96 · Vendor Advisory

More vulnerabilities in firefox

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

firefox

mozilla

< 45.6.0< 50.1

45.6.050.1

thunderbird

mozilla

< 45.6.0

45.6.0

More vulnerabilities in firefox

See all →