CVE-2016-1978: n/a vulnerability

CVE-2016-1978: Use-after-free vulnerability in the ssl3_HandleECDHServerKeyExchange function in Mozilla Network Security S...

Use-after-free vulnerability in the ssl3_HandleECDHServerKeyExchange function in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact by making an SSL (1) DHE or (2) ECDHE handshake at a time of high memory consumption.

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

Security readout for executives and security teams

CVE-2016-1978 is a memory safety flaw in Mozilla NSS used by Firefox and other products. A remote attacker could trigger a crash, and possibly other unspecified impact, during certain SSL DHE or ECDHE handshakes when the target is under high memory pressure. Exposure is most likely on legacy systems running NSS before 3.21, Firefox before 44.0, or vendor-packaged NSS/browser components referenced by Debian, Red Hat, SUSE, Ubuntu, Oracle, Gentoo, and Blue Coat advisories. Treat as a legacy hygiene and availability risk. Prioritize internet-facing or security-sensitive systems still using old NSS packages, but do not treat this as known exploited based on the provided evidence. Mitigation focus: Upgrade Mozilla NSS to 3.21 or later where vendor-supported.; Upgrade Firefox to 44.0 or later where applicable.; Apply relevant operating system or appliance vendor security updates..

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://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notesCVE reference · x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1209546CVE reference · x_refsource_CONFIRM
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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