Is CVE-2006-3677 in the CISA KEV catalog?

No. CVE-2006-3677 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-3677?

CVE-2006-3677 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2006-3677?

CVE-2006-3677 has an EPSS score of 78.36% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2006-3677

HIGHEPSS 100th pctl

7.5

CVSS v2

NVD

Description

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.

CWE-16

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

78.36%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.