Is CVE-2006-3946 being actively exploited?

CVE-2006-3946 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-3946?

CVE-2006-3946 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2006-3946

HIGH · CVSS 7.5EPSS 5.3%EU EUVD

WebCore in Apple Mac OS X 10.3.9 and 10.4 through 10.4.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted HTML that triggers a "memory management error" in WebKit, possibly due to a buffer overflow, as originally reported for the KHTMLParser::popOneBlock function in Apple Safari 2.0.4 using Javascript that changes document.body.innerHTML within a DIV tag.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-119
EPSS score: 5.3% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-3939)
Published: July 31, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-3939 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / safari

References

http://browserfun.blogspot.com/2006/07/mobb-31-safari-khtmlparserpoponeblock.html(Exploit)
http://lists.apple.com/archives/security-announce/2006/Sep/msg00002.html
http://secunia.com/advisories/21271(Exploit, Vendor Advisory)
http://secunia.com/advisories/22187(Vendor Advisory)
http://securitytracker.com/id?1016957
http://www.osvdb.org/27534
http://www.securityfocus.com/bid/19250(Exploit)
http://www.vupen.com/english/advisories/2006/3069(Vendor Advisory)
http://www.vupen.com/english/advisories/2006/3852(Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/28081

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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