PatchTheCVECVE-2001-0439: licq before 1.0.3 allows remote attackers to execute arbitrary commands via shell metacharacters in a URL.
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HIGH 7.5WATCHLISTUPGRADEMITIGATEMITIGATE
CVE-2001-0439 is a high-severity flaw (CVSS 7.5) affecting licq, linux, freebsd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
licq before 1.0.3 allows remote attackers to execute arbitrary commands via shell metacharacters in a URL.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| EPSS exploit chance | 2.4% (top 16%) |
| CISA exploited list | No |
| Published | 2001-07-02 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
licq licq UPGRADE
Affected: <= 1.0.2
Fixed in: newer than 1.0.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy licq || rpm -q licq || licq --version
2. UPGRADE to newer than 1.0.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade licq
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade licq
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
conectiva linux MITIGATE
Affected: 4.0 · 4.0es · 4.1 · 4.2 · 5.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
freebsd freebsd MITIGATE
Affected: 3.5.1 · 4.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.5.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
mandrakesoft mandrake linux MITIGATE
Affected: 7.1 · 7.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
mandrakesoft mandrake linux corporate server MITIGATE
Affected: 1.0.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.0.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
redhat linux MITIGATE
Affected: 7.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
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.
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-2001-0439?
licq: upgrade to newer than 1.0.2; linux: mitigate or apply the listed mitigation; freebsd: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2001-0439 being exploited?
CVE-2001-0439 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-2001-0439 affect?
CVE-2001-0439 affects licq, linux, freebsd. Severity is high (CVSS 7.5). licq before 1.0.3 allows remote attackers to execute arbitrary commands via shell metacharacters in a URL.
How urgent is CVE-2001-0439?
Priority 52/100. High severity; On your watchlist
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