Information disclosure in Mozilla Firefox

CVE-2016-9074

An existing mitigation of timing side-channel attacks is insufficient in some circumstances. This issue is addressed in Network Security Services (NSS) 3.26.1. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

Vulnerability class: Information Disclosure

EPSS: 0.025 (82.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-9074?
CVE-2016-9074 is a medium-severity vulnerability in Mozilla Firefox, classified under Information Disclosure. CVSS score: 5.9/10. Published 2018-06-11.
How severe is CVE-2016-9074?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2016-9074 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.