CVE-2001-0388: time server daemon timed allows remote attackers to cause a denial of service via malformed packets.

Q: How do I fix CVE-2001-0388?

freebsd: upgrade to newer than 4.1; mandrake linux: mitigate or apply the listed mitigation; suse linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2001-0388 being exploited?

CVE-2001-0388 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-2001-0388 affect?

CVE-2001-0388 affects freebsd, mandrake linux, suse linux. Severity is high (CVSS 10.0). time server daemon timed allows remote attackers to cause a denial of service via malformed packets.

Q: How urgent is CVE-2001-0388?

Priority 62/100. Critical severity; On your watchlist

This week

HIGH 10.0WATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2001-0388 is a high-severity flaw (CVSS 10.0) affecting freebsd, mandrake linux, suse linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

time server daemon timed allows remote attackers to cause a denial of service via malformed packets.

Why this priority

Critical severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Published	2001-06-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: freebsd · mandrakesoft · suse

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

Am I affected?

Timeline

2001-06-27 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

freebsd freebsd UPGRADE

Affected: <= 4.1

Fixed in: newer than 4.1

Safe to downgrade to: no unaffected older release

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: 6.0 · 6.1 · 7.0 · 7.1 · 7.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

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.

suse suse linux MITIGATE

Affected: 6.1 · 6.2 · 6.3 · 6.4 · 7.0 · 7.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1

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.

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-2001-0388?

freebsd: upgrade to newer than 4.1; mandrake linux: mitigate or apply the listed mitigation; suse linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0388 being exploited?

CVE-2001-0388 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-2001-0388 affect?

CVE-2001-0388 affects freebsd, mandrake linux, suse linux. Severity is high (CVSS 10.0). time server daemon timed allows remote attackers to cause a denial of service via malformed packets.

How urgent is CVE-2001-0388?

Priority 62/100. Critical severity; On your watchlist

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References

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