CVE-2006-3178: Directory traversal vulnerability in extract_chmLib example program in CHM Lib (chmlib) before 0.38 allows rem

Q: How do I fix CVE-2006-3178?

chm lib: upgrade to newer than 0.37. Exact commands for each OS are on this page.

Q: Is CVE-2006-3178 being exploited?

CVE-2006-3178 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-2006-3178 affect?

CVE-2006-3178 affects chm lib. Severity is medium (CVSS 5.0). Directory traversal vulnerability in extract_chmLib example program in CHM Lib (chmlib) before 0.38 allows remote attackers to overwrite arbitrary files via a CHM archive containing files with a .. (dot dot) in their filename.

Q: How urgent is CVE-2006-3178?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2006-3178 is a medium-severity flaw (CVSS 5.0) affecting chm lib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in extract_chmLib example program in CHM Lib (chmlib) before 0.38 allows remote attackers to overwrite arbitrary files via a CHM archive containing files with a .. (dot dot) in their filename.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Published	2006-06-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jed wing

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

Am I affected?

Timeline

2006-06-23 00:02 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

jed wing chm lib UPGRADE

Affected: <= 0.37

Fixed in: newer than 0.37

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chm-lib || rpm -q chm-lib || chm-lib --version

2. UPGRADE to newer than 0.37 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chm-lib

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chm-lib

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2006-3178?

chm lib: upgrade to newer than 0.37. Exact commands for each OS are on this page.

Is CVE-2006-3178 being exploited?

CVE-2006-3178 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-2006-3178 affect?

CVE-2006-3178 affects chm lib. Severity is medium (CVSS 5.0). Directory traversal vulnerability in extract_chmLib example program in CHM Lib (chmlib) before 0.38 allows remote attackers to overwrite arbitrary files via a CHM archive containing files with a .. (dot dot) in their filename.

How urgent is CVE-2006-3178?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2005-3318 MEDIUM 5.1 DOWNGRADE Buffer overflow in the _chm_decompress_block function in CHM lib (chmlib) before 0.37, as used in products suc
CVE-2005-2930 MEDIUM 5.1 DOWNGRADE Stack-based buffer overflow in the _chm_find_in_PMGL function in chm_lib.c for chmlib before 0.36, as used in
CVE-2005-2659 HIGH 10.0 DOWNGRADE Buffer overflow in the LZX decompression in CHM Lib (chmlib) 0.35, as used in products such as KchmViewer, has

References

← Back to latest CVEs