CVE-2016-1979: n/a vulnerability

CVE-2016-1979: Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Se...

Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before 45.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted key data with DER encoding.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 23:17 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-1979 is a memory safety flaw in Mozilla NSS, the cryptographic library used by Firefox and other software. A crafted DER-encoded key could crash affected software and may have had other unspecified effects. The main business risk is legacy systems still running pre-2016 NSS or Firefox builds. Exposure is most likely in old operating system packages, appliances, or applications bundling Mozilla NSS before 3.21.1, and Firefox before 45.0. Vendor advisories from Debian, Red Hat, SUSE, Ubuntu, Oracle, and Blue Coat indicate downstream packaging relevance, but the bundle does not list exact affected versions per vendor. Prioritize remediation where legacy NSS is exposed to untrusted key material or internet-driven processing. For standard patched systems, this is mainly a hygiene and legacy-risk item rather than an emergency, because active exploitation is not evidenced in the provided sources. Mitigation focus: Upgrade Mozilla NSS to 3.21.1 or later where directly managed.; Upgrade Firefox to 45.0 or later on legacy endpoints.; Apply relevant vendor security updates for affected Linux or appliance packages..

Prepared: Jun 13, 2026, 21:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 13, 2016, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bto.bluecoat.com/security-advisory/sa124CVE reference · x_refsource_CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1185033CVE reference · x_refsource_CONFIRM
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21.1_release_notesCVE reference · x_refsource_MISC
GLSA-201605-06CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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