Directory traversal vulnerability in extract_chmLib example program in CHM Lib (chmlib)…
Priority LOW 27Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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 it matters now
EPSS 0.02323 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-3178
- 2026-10-03 Alias added: GHSA-hm32-4m3x-9688
References
More Jed Wing Chm Lib vulnerabilities
- TI-2005-02523 Buffer overflow in the LZX decompression in CHM Lib (chmlib) 0.35, as used in products… CVSS 2.0HIGH 10.0
- TI-2005-03143 Buffer overflow in the _chm_decompress_block function in CHM lib (chmlib) before 0.37, as… CVSS 2.0MEDIUM 5.1
- TI-2005-02766 Stack-based buffer overflow in the _chm_find_in_PMGL function in chm_lib.c for chmlib… CVSS 2.0MEDIUM 5.1
Sources
- CVE-2006-3178 · CVE Program
- CVE-2006-3178 · NVD
- FIRST EPSS
- GHSA-hm32-4m3x-9688 · GitHub Advisory Database · CC BY 4.0
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