CVE-2016-2837: mozilla firefox
Vulnerability summary
CVE-2016-2837 is a medium (CVSS 6.8) vulnerability in mozilla firefox. EPSS estimates a 4.58% chance of exploitation in the next 30 days, higher than 91.6% of scored vulnerabilities.
Not severe (CVSS 6.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 9Timeline
- 05-08-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in the ClearKey Content Decryption Module (CDM) in the Encrypted Media Extensions (EME) API in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 might allow remote attackers to execute arbitrary code by providing a malformed video and leveraging a Gecko Media Plugin (GMP) sandbox bypass.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated6.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS trend
Probability
4.58%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.58% 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 causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- firefox-esr< 45.3.0esr-1
Mozilla1 product
- firefox≤ 47.0.1 | 45.1.0 | 45.1.1 | 45.2.0 | 45.3.0
Oracle1 product
- linuxEOL5.0 | 6 | 7
Ubuntu1 product
- firefox< 48.0+build2-0ubuntu0.14.04.1 | < 48.0+build2-0ubuntu0.16.04.1
4 vendors · 4 products
References
17 links
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRMThird Party Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1274637X Refsource CONFIRMIssue TrackingPermissions RequiredREPORT
Show all 17 references
- www.zerodayinitiative.com/advisories/ZDI-16-673X Refsource MISC