CVE-2017-5391

moderate-risk
Published 2018-06-11

Special "about:" pages used by web content, such as RSS feeds, can load privileged "about:" pages in an iframe. If a content-injection bug were found in one of those pages this could allow for potential privilege escalation. This vulnerability affects Firefox < 51.

Do I need to act?

~
2.4% chance of exploitation in next 30 days
EPSS score — moderate 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 (1)

Affected Vendors

Mozilla

References (8)

Third Party Advisory http://www.securityfocus.com/bid/95763
Third Party Advisory http://www.securitytracker.com/id/1037693
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1309310
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-01/
Third Party Advisory http://www.securityfocus.com/bid/95763
Third Party Advisory http://www.securitytracker.com/id/1037693
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1309310
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-01/
43
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 5/34 · Minimal