Use-after-free vulnerability in the mozSpellChecker::SetCurrentDictionary function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
CVE-2012-3960 is a security vulnerability that . Impacting 14 products from mozilla, from mozilla, from mozilla and 11 others, organizations running these solutions should prioritize assessment and patching.
Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2012-08-29T10:56:40.457
2025-04-11T00:51:21.963
Deferred
CVSSv2: 10.0 (HIGH)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | mozilla | firefox | < 15.0 | Yes |
| Application | mozilla | firefox | < 10.0.7 | Yes |
| Application | mozilla | seamonkey | < 2.12 | Yes |
| Application | mozilla | thunderbird | < 15.0 | Yes |
| Application | mozilla | thunderbird_esr | < 10.0.7 | Yes |
| Operating System | opensuse | opensuse | 12.2 | Yes |
| Operating System | suse | linux_enterprise_desktop | 10 | Yes |
| Operating System | suse | linux_enterprise_desktop | 11 | Yes |
| Operating System | suse | linux_enterprise_server | 10 | Yes |
| Operating System | suse | linux_enterprise_server | 11 | Yes |
| Operating System | suse | linux_enterprise_server | 11 | Yes |
| Operating System | suse | linux_enterprise_software_development_kit | 11 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 5.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_eus | 6.3 | Yes |
| Operating System | redhat | enterprise_linux_server | 5.0 | Yes |
| Operating System | redhat | enterprise_linux_server | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_server_eus | 6.3 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 5.0 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 6.0 | Yes |
| Operating System | canonical | ubuntu_linux | 10.04 | Yes |
| Operating System | canonical | ubuntu_linux | 11.04 | Yes |
| Operating System | canonical | ubuntu_linux | 11.10 | Yes |
| Operating System | canonical | ubuntu_linux | 12.04 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mozilla's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.