What’s Vulnerable › Vulnerabilities

CVE-2008-5543

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2008-12-12 · updated 2026-06-16
• Weakness: CWE-20

Description

Symantec AntiVirus (SAV) 10, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit.

Affected products

• Symantec Antivirus: 10.0

References

• http://securityreason.com/securityalert/4723
• http://www.securityfocus.com/archive/1/498995/100/0/threaded
• http://www.securityfocus.com/archive/1/499043/100/0/threaded
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47435
• http://securityreason.com/securityalert/4723
• http://www.securityfocus.com/archive/1/498995/100/0/threaded
• http://www.securityfocus.com/archive/1/499043/100/0/threaded
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47435

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