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CVE-2016-1950

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…

High8.8EPSS 4.2%
Published
Updated
Reserved
Assigned by
mozilla

Description

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.

Timeline

  1. ID reserved

    By mozilla

  2. · 53 days later

    Published

  3. · 8 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2016-1950, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0High8.8CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
4.2% · top 9.0% of all CVEs (8 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

Affected products

  • n/a

    • affected n/a

References (37)

Sources

The same CVE in the primary databases and aggregators, to check against.

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CVE-2016-1950 badge
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Record last updated .