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CVE-2005-3377

15
FAUCET Score

CVE-2005-3377 describes a multiple interpretation error in specific versions of McAfee Internet Security Suite and McAfee Corporate, allowing remote attackers to bypass virus scanning. This vulnerability occurs when files like BAT, HTML, or EML contain an "MZ" magic byte sequence, typically associated with executables, causing the antivirus to misclassify them as safe while they can still be executed as dangerous file types. With a CVSS score of 5.1, this vulnerability has a network attack vector, high access complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.1.5_version_9.1.08_engine_4.4.00CPE matchmatch criteria
cpe:2.3:a:mcafee:internet_security_suite:7.1.5_version_9.1.08_engine_4.4.00:*:*:*:*:*:*:*
8.0.0_patch_10_engine_4400CPE matchmatch criteria
cpe:2.3:a:mcafee:internet_security_suite:8.0.0_patch_10_engine_4400:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

AV:N/AC:H/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 37th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
securityelf.org / magicbyteadv.html
Vendor Advisory
securityelf.org / magicbyte.html
securityelf.org / updmagic.html
securityfocus.com / bid/15189