CVE-2008-5747: F-Prot 4.6.8 for GNU/Linux allows remote attackers to bypass anti-virus protection via a crafted ELF program w

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MEDIUM 5.0WATCHLISTDOWNGRADE

CVE-2008-5747 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.

F-Prot 4.6.8 for GNU/Linux allows remote attackers to bypass anti-virus protection via a crafted ELF program with a "corrupted" header that still allows the program to be executed. NOTE: due to an error in the initial disclosure, F-secure was incorrectly stated as the vendor.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-399
Published	2008-12-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: f-prot

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

Am I affected?

Timeline

2008-12-29 15:24 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

f-prot f-prot antivirus DOWNGRADE

Affected: 4.6.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.6.8

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.6.8 (Debian / Ubuntu)

apt-cache madison f-prot-antivirus sudo apt install f-prot-antivirus=<VERSION_BEFORE_4.6.8> sudo apt-mark hold f-prot-antivirus

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list f-prot-antivirus sudo dnf downgrade f-prot-antivirus-<VERSION_BEFORE_4.6.8> sudo dnf versionlock add f-prot-antivirus

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2008-5747?

f-prot antivirus: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-5747 being exploited?

CVE-2008-5747 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-2008-5747 affect?

CVE-2008-5747 affects f-prot antivirus. Severity is medium (CVSS 5.0). F-Prot 4.6.8 for GNU/Linux allows remote attackers to bypass anti-virus protection via a crafted ELF program with a "corrupted" header that still allows the program to be executed. NOTE: due to an error in the initial disclosure, F-secure

How urgent is CVE-2008-5747?

Priority 44/100. On your watchlist

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References

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