Mozilla Firefox 1.5 before 1.5.0.5 and SeaMonkey before 1.0.3 allows remote attackers to execute arbitrary code by changing certain properties of the window navigator object (window.navigator) that are accessed when Java starts up, which causes a crash that leads to code execution.
Conclusion & alert: CVE-2006-3677 is rated High Exploit Risk (74.5/100): CVSS High severity, with high exploitation likelihood (EPSS 67.30%, 99th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 16300 | exploit_db | edb | 2010-09-20 | Exploit-DB ↗ |
| 2082 | exploit_db | edb | 2006-07-28 | Exploit-DB ↗ |
| 9946 | exploit_db | edb | 2006-07-25 | 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 | 2026-04-05 | 76.76% | 67.30% | -9.46% |
| 2 | 2026-02-05 | 81.11% | 76.76% | -4.35% |
| 3 | 2025-06-29 | — | 81.11% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
high | CVE-2006-3677 high priority: Debian including 2 source packages (firefox, thunderbird), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2006-3677 |
gentoo
|
normal | CVE-2006-3677: 2 GLSA(s) (200608-02, 200608-03), 3 atom(s) (www-client/mozilla-firefox, www-client/mozilla-firefox-bin, www-client/seamonkey); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-3677 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2006-3677 |
ubuntu
|
medium | CVE-2006-3677 medium priority: Ubuntu including 5 source packages (firefox, firefox-granparadiso, lightning-sunbird, midbrowser, xulrunner), 20 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 10, needs-triage 5, released 3, not-affected 2. | https://ubuntu.com/security/CVE-2006-3677 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | 1.5 | cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.1 | cpe:2.3:a:mozilla:firefox:1.5.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.2 | cpe:2.3:a:mozilla:firefox:1.5.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.3 | cpe:2.3:a:mozilla:firefox:1.5.0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.4 | cpe:2.3:a:mozilla:firefox:1.5.0.4:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0 | cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0 | cpe:2.3:a:mozilla:seamonkey:1.0:*:dev:*:*:*:*:* |
| mozilla | seamonkey | 1.0.1 | cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.2 | cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:* |