VulnerabilityModified
CVE-2016-5287
A potentially exploitable use-after-free crash during actor destruction with service workers.
CRITICAL 9.8EPSS 2.39%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A potentially exploitable use-after-free crash during actor destruction with service workers. This issue does not affect releases earlier than Firefox 49. This vulnerability affects Firefox < 49.0.2.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.39% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- http://www.securityfocus.com/bid/93811Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037077Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1309823Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-87/Vendor Advisory
- http://www.securityfocus.com/bid/93811Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037077Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1309823Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-87/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.