CVE-2016-5289

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-11 · updated 2026-06-17
Weakness: CWE-119

Description

Memory safety bugs were reported in Firefox 49. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 50.

Affected products

Mozilla Firefox: before 50.0 — fixed in 50.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 50.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/94337
http://www.securitytracker.com/id/1037298
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1296649%2C1298107%2C1300129%2C1305876%2C1314667%2C1301252%2C1277866%2C1307254%2C1252511%2C1264053
https://www.mozilla.org/security/advisories/mfsa2016-89/
http://www.securityfocus.com/bid/94337
http://www.securitytracker.com/id/1037298
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1296649%2C1298107%2C1300129%2C1305876%2C1314667%2C1301252%2C1277866%2C1307254%2C1252511%2C1264053
https://www.mozilla.org/security/advisories/mfsa2016-89/

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