CVE-2016-2838: mozilla firefox
Vulnerability summary
CVE-2016-2838 is a high (CVSS 8.8) vulnerability in mozilla firefox. EPSS estimates a 4.51% chance of exploitation in the next 30 days, higher than 91.5% 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 13 · Related 9Timeline
- 05-08-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in the nsBidi::BracketData::AddOpening function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via directional content in an SVG document.
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
4.51%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.51% 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
Ubuntu1 product
- firefox< 48.0+build2-0ubuntu0.14.04.1 | < 48.0+build2-0ubuntu0.16.04.1
3 vendors · 3 products
References
16 links
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlX Refsource CONFIRM
- bugzilla.mozilla.org/show_bug.cgi?id=1279814X Refsource CONFIRMIssue TrackingPermissions RequiredREPORT