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01 Record

CVE-2008-5521

Avira AntiVir 7.9.0.36 and possibly 7.8.1.28, 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")

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

Avira AntiVir 7.9.0.36 and possibly 7.8.1.28, 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")

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.90% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 79.5% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2008-12-12 18:13Z17 YR AGO
Last updated
2024-08-07 10:56Z2 YR AGO
Reserved
2008-12-12
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
2f696c0077cf18a8590071366ca819ffaf53916f6b9ac476b41edab1894c48c1

05 Affected products

VendorProductVersionsPlatforms
free-avantivirNot specified—
microsoftinternet_explorerNot specified—

06 References