Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 44.0…
Priority MEDIUM 51CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 44.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to uninitialized memory encountered during brotli data compression, and other vectors.
Why it matters now
EPSS 0.05722 93rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | up to 43.0.4 | Vulnerable | Mozilla |
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 43.0.4 Vulnerable ·Mozilla
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2016-1931
- 2026-10-03 Alias added: GHSA-x2jf-fqm5-8f5p
References
Advisory 6
Other 13
- https://bugzilla.mozilla.org/show_bug.cgi?id=1206675
- https://bugzilla.mozilla.org/show_bug.cgi?id=1231121
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209365
- https://bugzilla.mozilla.org/show_bug.cgi?id=1229825
- https://bugzilla.mozilla.org/show_bug.cgi?id=1207298
- https://bugzilla.mozilla.org/show_bug.cgi?id=1234576
- https://bugzilla.mozilla.org/show_bug.cgi?id=1186973
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209358
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209366
- https://bugzilla.mozilla.org/show_bug.cgi?id=1222015
- https://bugzilla.mozilla.org/show_bug.cgi?id=1180064
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209368
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209546
Sources
- CVE-2016-1931 · CVE Program
- CVE-2016-1931 · NVD
- FIRST EPSS
- GHSA-x2jf-fqm5-8f5p · GitHub Advisory Database · CC BY 4.0
- CVE-2016-1931 · Red Hat security data · CC BY 4.0
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