CVE-2018-1002205

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-07-25 · updated 2026-06-17
Weakness: CWE-22

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'.

Affected products

DotNetZip.Semvered: before 1.11.0 — fixed in 1.11.0

How to fix

Upgrade to a fixed version: DotNetZip.Semvered 1.11.0. Check the vendor advisory for mitigations.

References

https://github.com/haf/DotNetZip.Semverd/commit/55d2c13c0cc64654e18fcdd0038fdb3d7458e366
https://github.com/haf/DotNetZip.Semverd/pull/121
https://github.com/snyk/zip-slip-vulnerability
https://snyk.io/research/zip-slip-vulnerability
https://snyk.io/vuln/SNYK-DOTNET-DOTNETZIP-60245
https://github.com/haf/DotNetZip.Semverd/commit/55d2c13c0cc64654e18fcdd0038fdb3d7458e366
https://github.com/haf/DotNetZip.Semverd/pull/121
https://github.com/snyk/zip-slip-vulnerability
https://snyk.io/research/zip-slip-vulnerability
https://snyk.io/vuln/SNYK-DOTNET-DOTNETZIP-60245

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