CVE-2018-1002208
SharpZipLib before 1.0 RC1 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction.
Does this matter?
Lower severity and a low EPSS score (9.88%). Track it; it rarely justifies an emergency change on its own.
Description
SharpZipLib before 1.0 RC1 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS
- 9.88% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- sharpziplib project/sharpziplib
- Source
- report@snyk.io
EPSS 9.9% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/icsharpcode/SharpZipLib/issues/232Issue Tracking, Patch, Third Party Advisory
- https://github.com/icsharpcode/SharpZipLib/wiki/Release-1.0Issue Tracking, Patch, Third Party Advisory
- https://github.com/snyk/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/research/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/vuln/SNYK-DOTNET-SHARPZIPLIB-60247Exploit, Patch, Technical Description
- https://github.com/icsharpcode/SharpZipLib/issues/232Issue Tracking, Patch, Third Party Advisory
- https://github.com/icsharpcode/SharpZipLib/wiki/Release-1.0Issue Tracking, Patch, Third Party Advisory
- https://github.com/snyk/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/research/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/vuln/SNYK-DOTNET-SHARPZIPLIB-60247Exploit, Patch, Technical Description
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.