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Vulnerabilities

Vulnerability · CVE-2006-3946

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 H…

Published Jul 31, 2006 · catalog updated Jun 16, 2026 · Apple

Check if you run it

No confirmed exploitation is on record for CVE-2006-3946. EPSS is 5.30%. Act only if a listed version of Apple is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
5.30%
Remediation
Advisory link
Affected products
cpe apple/mac os x · cpe apple/safari

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/mac os x10.3.9
  • cpe apple/mac os x10.4
  • cpe apple/mac os x10.4.1
  • cpe apple/mac os x10.4.2
  • cpe apple/mac os x10.4.3
  • cpe apple/mac os x10.4.4
  • cpe apple/mac os x10.4.5
  • cpe apple/mac os x10.4.6
  • cpe apple/mac os x10.4.7
  • cpe apple/safari2.0.4

How to fix CVE-2006-3946

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2006-3946. EPSS is 5.30%. Act only if a listed version of Apple is installed.

Which versions are affected?

Compare what you have installed with apple/mac os x 10.3.9; apple/mac os x 10.4; apple/mac os x 10.4.1; apple/mac os x 10.4.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow. EPSS 5.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 31, 2006 · Apple Security Releases

    Detected

    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

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    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

Sources

  • Apple Security ReleasesVendor advisoryCVE-2006-3946

    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

    nvd.nist.gov
  • CVE.orgVulnerability recordCVE-2006-3946

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2006-3946

    30-day exploitation probability 5.30%

    first.org

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.