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CVE-2008-5523

nvd nist
Published: Dec 12, 2008Modified: Apr 23, 2026

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9.3
Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Exploitability: 8.6 / Impact: 10.0
Source: NVD

Description

avast! antivirus 4.8.1281.0, 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 (1)

Avast
1 product
Avast Antivirus
Configuration A
1 vulnerable · 2 platform
Vulnerable SoftwareAffected Versions
Avast Antivirus
Version 4.8.1281.0
Running on/withPlatform Versions
Microsoft
Internet Explorer
Version 6
Microsoft
Internet Explorer
Version 7

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (8)

Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.