CVE-2016-1979: mozilla firefox
Vulnerability summary
CVE-2016-1979 is a high (CVSS 8.8) vulnerability in mozilla firefox. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 82.3% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 8Timeline
- 13-03-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.17%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.17% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- firefox-esr< 45.0esr-1
- nss< 2:3.21-1
Mozilla2 products
- firefox≤ 44.0.2
- network_security_services≤ 3.21
Ubuntu2 products
- firefox< 44.0.2+build1-0ubuntu0.14.04.1
- thunderbird< 1:38.8.0+build1-0ubuntu0.14.04.1 | < 1:38.8.0+build1-0ubuntu0.16.04.1
3 vendors · 6 products
References
28 links- bto.bluecoat.com/security-advisory/sa124X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlX Refsource CONFIRM
- bugzilla.mozilla.org/show_bug.cgi?id=1185033X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlX Refsource CONFIRM
Show all 28 references
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlX Refsource CONFIRM
- www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.htmlX Refsource CONFIRM