CVE-2016-5257

moderate-risk
Published 2016-09-22

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Do I need to act?

-
0.91% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Mozilla

References (40)

http://rhn.redhat.com/errata/RHSA-2016-1912.html
http://rhn.redhat.com/errata/RHSA-2016-1985.html
http://www.debian.org/security/2016/dsa-3674
http://www.debian.org/security/2016/dsa-3690
Vendor Advisory http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.h...
http://www.securityfocus.com/bid/93049
http://www.securitytracker.com/id/1036852
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1277213
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1287204
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1288555
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1288588
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1288780
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1289280
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1293347
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1294095
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1294407
https://security.gentoo.org/glsa/201701-15
https://www.mozilla.org/security/advisories/mfsa2016-86/
https://www.mozilla.org/security/advisories/mfsa2016-88/
and 20 more references
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 12/34 · Low