CVE-2009-3455

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-29 · updated 2026-06-16
Weakness: CWE-310

Description

Apple Safari, possibly before 4.0.3, on Mac OS X does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Affected products

Apple Safari: through 4.0.2; 0.8, 0.9, 1.0, 1.0.0, 1.0b1, 1.1 (+33)

References

http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
http://www.securityfocus.com/bid/36477
http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
http://www.securityfocus.com/bid/36477

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