CVE-2006-6352: FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to cause a denial of servic

Q: How do I fix CVE-2006-6352?

f-prot antivirus: upgrade to newer than 4.6.6. Exact commands for each OS are on this page.

Q: Is CVE-2006-6352 being exploited?

CVE-2006-6352 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-6352 affect?

CVE-2006-6352 affects f-prot antivirus. Severity is medium (CVSS 5.0). FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to cause a denial of service (infinite loop) via a crafted ACE file. NOTE: this issue has at least a partial overlap with CVE-2006-6294.

Q: How urgent is CVE-2006-6352?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

This week

MEDIUM 5.0UPGRADE

CVE-2006-6352 is a medium-severity flaw (CVSS 5.0) affecting f-prot antivirus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to cause a denial of service (infinite loop) via a crafted ACE file. NOTE: this issue has at least a partial overlap with CVE-2006-6294.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	9.4% (top 5%)
CISA exploited list	No
Published	2006-12-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: frisk software

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-12-07 01:28 UTCPublished CVE record published
2026-06-16 22:32 UTCUpdated Record last modified

frisk software f-prot antivirus UPGRADE

Affected: <= 4.6.6 · 3.16f

Fixed in: newer than 4.6.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy f-prot-antivirus || rpm -q f-prot-antivirus || f-prot-antivirus --version

2. UPGRADE to newer than 4.6.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade f-prot-antivirus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade f-prot-antivirus

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: F-Prot AntiVirus 4.6.6 - 'ACE' Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-6352?

f-prot antivirus: upgrade to newer than 4.6.6. Exact commands for each OS are on this page.

Is CVE-2006-6352 being exploited?

CVE-2006-6352 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-6352 affect?

CVE-2006-6352 affects f-prot antivirus. Severity is medium (CVSS 5.0). FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to cause a denial of service (infinite loop) via a crafted ACE file. NOTE: this issue has at least a partial overlap with CVE-2006-6294.

How urgent is CVE-2006-6352?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

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References

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