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CVE-2016-1950

HIGH · CVSS 8.8EPSS 4.2%EU EUVD

Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and 3.20.x and 3.21.x before 3.21.1, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to execute arbitrary code via crafted ASN.1 data in an X.509 certificate.

Key facts

CVSS score
8.8 (v3.0)
Severity
HIGH
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-119
EPSS score
4.2% (91th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2016-3039)
Published
March 13, 2016
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2016-3039 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

  • apple / iphone os
  • apple / mac os x
  • apple / tvos
  • apple / watchos
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / network security services
  • mozilla / network security services
  • mozilla / network security services
  • mozilla / network security services
  • opensuse / opensuse
  • oracle / glassfish server
  • oracle / iplanet web proxy server
  • oracle / iplanet web server
  • oracle / linux
  • oracle / linux
  • oracle / linux
  • oracle / vm server

Certified products that may be affected

27 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

See all 27 in the Security Certifications Explorer.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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CVE-2016-1950: HIGH severity (CVSS 8.8)