Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before…
Priority MEDIUM 49Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Why it matters now
EPSS 0.05783 93rd percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD
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 · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | before 10.0.11; before 17.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* | before 2.14 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | before 17.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* | before 10.0.11 | Vulnerable | Mozilla |
| cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* | 11.4 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:* | 12.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:* | 12.2 | Vulnerable | openSUSE |
| cpe:2.3:o:suse:linux_enterprise_desktop:10:sp4:*:*:*:*:*:* | 10 sp4 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:*:*:*:* | 10 sp4 | Vulnerable | SUSE |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 10.0.11; before 17.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* Versions before 2.14 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 17.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* Versions before 10.0.11 Vulnerable ·Mozilla
- cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* Versions 11.4 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:* Versions 12.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:* Versions 12.2 Vulnerable ·openSUSE
- cpe:2.3:o:suse:linux_enterprise_desktop:10:sp4:*:*:*:*:*:* Versions 10 sp4 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:*:*:*:* Versions 10 sp4 Vulnerable ·SUSE
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:-:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:* | 10 sp4 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* | 11.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* | 12.10 | Vulnerable | Canonical |
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:-:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:* Versions 10 sp4 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* Versions 11.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* Versions 12.10 Vulnerable ·Canonical
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: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2012-5843
- 2026-10-03 Alias added: GHSA-9jx2-4rcx-p49j
References
Exploit 4
Patch 9
- https://bugzilla.mozilla.org/show_bug.cgi?id=789075
- https://bugzilla.mozilla.org/show_bug.cgi?id=793253
- https://bugzilla.mozilla.org/show_bug.cgi?id=784404
- https://bugzilla.mozilla.org/show_bug.cgi?id=774953
- https://bugzilla.mozilla.org/show_bug.cgi?id=798678
- https://bugzilla.mozilla.org/show_bug.cgi?id=795281
- https://bugzilla.mozilla.org/show_bug.cgi?id=780778
- https://bugzilla.mozilla.org/show_bug.cgi?id=787089
- https://bugzilla.mozilla.org/show_bug.cgi?id=765409
Sources
- CVE-2012-5843 · CVE Program
- CVE-2012-5843 · NVD
- FIRST EPSS
- GHSA-9jx2-4rcx-p49j · GitHub Advisory Database · CC BY 4.0
- CVE-2012-5843 · Red Hat security data · CC BY 4.0
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