CVE-2018-1002205
DotNetZip.Semvered before 1.11.0 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?
EPSS puts the probability of exploitation in the next 30 days at 10.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
DotNetZip.Semvered before 1.11.0 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
- 10.39% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- dotnetzip.semverd project/dotnetzip.semverd
- Source
- report@snyk.io
EPSS moved from 9.1% on 21 September 2026 to 10.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/haf/DotNetZip.Semverd/commit/55d2c13c0cc64654e18fcdd0038fdb3d7458e366Patch
- https://github.com/haf/DotNetZip.Semverd/pull/121Patch
- https://github.com/snyk/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/research/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/vuln/SNYK-DOTNET-DOTNETZIP-60245Third Party Advisory
- https://github.com/haf/DotNetZip.Semverd/commit/55d2c13c0cc64654e18fcdd0038fdb3d7458e366Patch
- https://github.com/haf/DotNetZip.Semverd/pull/121Patch
- https://github.com/snyk/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/research/zip-slip-vulnerabilityThird Party Advisory
- https://snyk.io/vuln/SNYK-DOTNET-DOTNETZIP-60245Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.