CVE-2002-1562: Directory traversal vulnerability in thttpd, when using virtual hosting, allows remote attackers to read arbit

Routine

MEDIUM 5.0MITIGATE

CVE-2002-1562 is a medium-severity flaw (CVSS 5.0) affecting thttpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in thttpd, when using virtual hosting, allows remote attackers to read arbitrary files via .. (dot dot) sequences in the Host: header.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.8% (top 13%)
CISA exploited list	No
Published	2003-05-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: acme labs

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

Am I affected?

Timeline

2003-05-12 04:00 UTCPublished CVE record published
2026-06-16 21:59 UTCUpdated Record last modified

acme labs thttpd MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy thttpd || rpm -q thttpd || thttpd --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2002-1562?

thttpd: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-1562 being exploited?

CVE-2002-1562 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-2002-1562 affect?

CVE-2002-1562 affects thttpd. Severity is medium (CVSS 5.0). Directory traversal vulnerability in thttpd, when using virtual hosting, allows remote attackers to read arbitrary files via .. (dot dot) sequences in the Host: header.

How urgent is CVE-2002-1562?

Priority 39/100. No elevated risk signals yet.

Related CVEs

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CVE-2017-17663 CRITICAL 9.8 UPGRADE UPGRADE The htpasswd implementation of mini_httpd before v1.28 and of thttpd before v2.28 is affected by a buffer over
CVE-2013-0348 LOW 2.1 UPGRADE MITIGATE thttpd.c in sthttpd before 2.26.4-r2 and thttpd 2.25b use world-readable permissions for /var/log/thttpd.log,
CVE-2012-5640 MEDIUM 5.5 MITIGATE thttpd has a local DoS vulnerability via specially-crafted .htpasswd files
CVE-2009-4491 CRITICAL 9.8 DOWNGRADE thttpd 2.25b0 writes data to a log file without sanitizing non-printable characters, which might allow remote

References

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