CVE Tools
Sign in

CVE-2012-3991

Published: Oct 10, 2012Updated: Apr 29, 2026 Sources: CVE List NVDCWE-264
9.3CRITICAL
NVD MITRE
EPSS Score
3.1%
Top 13.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 do not properly restrict JSAPI access to the GetProperty function, which allows remote attackers to bypass the Same Origin Policy and possibly have unspecified other impact via a crafted web site.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:MAu:NC:CI:CA:C
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:CConfidentiality
Complete
I:CIntegrity
Complete
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-264

Affected Products

mozilla
oss-project·USaka mozilla corp.
firefoxOn-premDesktop App
Consumer Software / browser
thunderbird esr
Consumer Software
thunderbirdOn-premDesktop App
Communications / email-server-client
seamonkeyDesktop App
Consumer Software / browser
suse
commercial·DE
linux enterprise desktopOn-premOS
Operating Systems / linux-distro
linux enterprise sdkOn-premOS
Operating Systems / linux-distro
linux enterprise serverOn-premOS
Operating Systems / linux-distro
canonical
commercial·GBaka canonical ltd.
ubuntu linuxOn-premOS
Operating Systems / linux-distro
redhat
commercial·USaka red hat
enterprise linux workstationOn-premOS
Operating Systems / linux-distro
and 4 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2012-3991?We can run the check for you — a free external exposure review, no install. Check my exposure

References

http://secunia.com/advisories/50904
secunia.com
http://secunia.com/advisories/50984
secunia.com
http://secunia.com/advisories/50935
secunia.com
and 17 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2012-3991 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows