The WebGL subsystem in Mozilla Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ESR 17.x before 17.0.5, and SeaMonkey before 2.17 on Linux does not properly interact with Mesa drivers, which allows remote attackers to execute arbitrary code or cause a denial of service (free of unallocated memory) via unspecified vectors.
Conclusion & alert: CVE-2013-0796 is rated High Exploit Risk (92.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.80%, 94th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.93% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.88% | 7.80% | +4.93% |
| 2 | 2026-01-20 | 4.53% | 2.88% | -1.66% |
| 3 | 2025-10-05 | — | 4.53% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2013-0796: 1 GLSA(s) (201309-23), 6 atom(s) (mail-client/thunderbird, mail-client/thunderbird-bin, www-client/firefox, www-client/firefox-bin, www-client/seamonkey, www-client/seamonkey-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-0796 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2013-0796 |
suse
|
critical | CVE-2013-0796 severity critical: SUSE including 78 source package names (MozillaFirefox-140.2.0-160000.1.2, MozillaFirefox-17.0.6esr-0.4.1, …), 136 product×package rows across 34 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 12, … (34 product lines)): Fixed 136. | https://www.suse.com/security/cve/CVE-2013-0796/ |
ubuntu
|
medium | CVE-2013-0796 medium priority: Ubuntu including 5 source packages (firefox, seamonkey, thunderbird, xulrunner-1.9.2, xulrunner-2.0), 40 status rows across 8 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, upstream): DNE 16, released 14, ignored 7, needs-triage 2, pending 1. | https://ubuntu.com/security/CVE-2013-0796 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | < 20.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | >= 17.0, < 17.0.5 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | >= 17.0, < 17.0.5 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | >= 17.0, < 17.0.5 | cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | < 2.17 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |