Vulnerability in Mozilla Firefox

CVE-2015-7575

Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which…

EPSS: 0.011 (78.1th 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-2015-7575?
CVE-2015-7575 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-19. CVSS score: 5.9/10. Published 2016-01-09.
How severe is CVE-2015-7575?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2015-7575 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.