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CVE-2006-2427: freshclam in (1) Clam Antivirus (ClamAV) 0.88 and (2) ClamXav 1.0.3h and earlier does not drop privileges befo

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HIGH 7.2DOWNGRADEDOWNGRADE

CVE-2006-2427 is a high-severity flaw (CVSS 7.2) affecting clamav, clamxav. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

freshclam in (1) Clam Antivirus (ClamAV) 0.88 and (2) ClamXav 1.0.3h and earlier does not drop privileges before processing the config-file command line option, which allows local users to read portions of arbitrary files when an error message displays the first line of the target file.

Why this priority

  • High severity
  • Public exploit reference

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

Risk facts

CVSS score7.2 (High)
EPSS exploit chance0.5% (top 59%)
CISA exploited listNo
Published2006-05-17
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: clam anti-virus

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

Am I affected?

Timeline

clam anti-virus clamav DOWNGRADE
Affected: 0.88
Fixed in: no fixed release known
Safe to downgrade to: a release before 0.88
1. Check installed version
apt-cache policy clamav || rpm -q clamav || clamav --version
2. No fixed release: DOWNGRADE to a release before 0.88 (Debian / Ubuntu)
apt-cache madison clamav sudo apt install clamav=<VERSION_BEFORE_0.88> sudo apt-mark hold clamav
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list clamav sudo dnf downgrade clamav-<VERSION_BEFORE_0.88> sudo dnf versionlock add clamav
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.
clam anti-virus clamxav DOWNGRADE
Affected: 1.0.3h
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.0.3h
1. Check installed version
apt-cache policy clamxav || rpm -q clamxav || clamxav --version
2. No fixed release: DOWNGRADE to a release before 1.0.3h (Debian / Ubuntu)
apt-cache madison clamxav sudo apt install clamxav=<VERSION_BEFORE_1.0.3h> sudo apt-mark hold clamxav
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list clamxav sudo dnf downgrade clamxav-<VERSION_BEFORE_1.0.3h> sudo dnf versionlock add clamxav
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-2006-2427?

clamav: downgrade or apply the listed mitigation; clamxav: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2427 being exploited?

CVE-2006-2427 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-2006-2427 affect?

CVE-2006-2427 affects clamav, clamxav. Severity is high (CVSS 7.2). freshclam in (1) Clam Antivirus (ClamAV) 0.88 and (2) ClamXav 1.0.3h and earlier does not drop privileges before processing the config-file command line option, which allows local users to read portions of arbitrary files when an error mess

How urgent is CVE-2006-2427?

Priority 41/100. High severity; Public exploit reference

Related CVEs

References

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