Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to execute arbitrary code by appending an SVG comment DOM node to another type of document, which triggers memory corruption.
Conclusion & alert: CVE-2006-6504 is rated High Risk (72.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 41.55%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2025-08-08 | 40.69% | 41.55% | +0.87% |
| 2 | 2025-06-16 | 47.03% | 40.69% | -6.35% |
| 3 | 2025-03-30 | — | 47.03% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-6504: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-6504 |
debian
|
high | CVE-2006-6504 high priority: Debian including 2 source packages (firefox, firefox-esr), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2006-6504 |
gentoo
|
high | CVE-2006-6504: 2 GLSA(s) (200701-02, 200701-04), 3 atom(s) (www-client/mozilla-firefox, www-client/mozilla-firefox-bin, www-client/seamonkey); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-6504 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2006-6504 |
ubuntu
|
medium | CVE-2006-6504 medium priority: Ubuntu including 6 source packages (firefox, firefox-3.0, iceape, lightning-sunbird, midbrowser, xulrunner), 30 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): DNE 13, released 9, needs-triage 6, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2006-6504 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | >= 1.5, < 1.5.0.9 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | >= 2.0, < 2.0.0.1 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | < 1.0.7 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 5.10 | cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 6.06 | cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 6.10 | cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* |