CVE-2012-5843
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 17.0,...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-5843- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-5843- Updated
- 2026-11-02
EUVDEUVD-2012-5721 No score
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.
- Record
EUVD-2012-5721- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9jx2-4rcx-p49j No score
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 17.0,...
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.
- Record
GHSA-9jx2-4rcx-p49j- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10071-1 No score
MozillaFirefox-50.1.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-50.1.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10071-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10218-1 No score
seamonkey-2.40-6.1 on GA media
These are all security issues fixed in the seamonkey-2.40-6.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10218-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10230-1 No score
MozillaThunderbird-45.5.1-1.1 on GA media
These are all security issues fixed in the MozillaThunderbird-45.5.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10230-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxopenSUSE:Tumbleweed |
before 50.1.0-1.1 | 50.1.0-1.1 |
MozillaThunderbirdopenSUSE:Tumbleweed |
before 45.5.1-1.1 | 45.5.1-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-5843 is a high vulnerability (CVSS 9.3) in Mozilla Firefox, published November 21, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.78%, the 93rd percentile. Fixed in MozillaFirefox 50.1.0-1.1.
References
bugzilla.mozilla.org/show_bug.cgi?id=789075
ubuntu.com/usn/USN-1638-3
secunia.com/advisories/51370
Show 194 moreShow less
lists.opensuse.org/opensuse-updates/2012-11/msg00093.html
mozilla.org/security/announce/2012/mfsa2012-91.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16839
nvd.nist.gov/vuln/detail/CVE-2012-5843
github.com/advisories/GHSA-9jx2-4rcx-p49j
suse.com/security/cve/CVE-2008-5913
Left out here: 776 references. The JSON record has them.