CVE-2016-1962: mozilla firefox
Vulnerability summary
CVE-2016-1962 is a high (CVSS 10.0) vulnerability in mozilla firefox. EPSS estimates a 6.08% chance of exploitation in the next 30 days, higher than 93.4% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 6% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 7Timeline
- 13-03-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Use-after-free vulnerability in the mozilla::DataChannelConnection::Close function in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code by leveraging mishandling of WebRTC data-channel connections.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
6.08%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.08% 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, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- firefox-esr< 45.0esr-1
Mozilla1 product
- firefox≤ 44.0.2 | 38.0 | 38.0.1 | 38.0.5 | 38.1.0 | 38.1.1 | 38.2.0 | 38.2.1 | 38.3.0 | 38.4.0 | 38.5.0 | 38.5.1 | 38.6.0 | 38.6.1
Opensuse1 product
- opensuseEOL13.1
Oracle1 product
- linuxEOL5.0 | 6 | 7
Ubuntu1 product
- firefox< 45.0+build2-0ubuntu0.14.04.1
5 vendors · 5 products
References
23 links- lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRMThird Party Advisory
