CVE-2018-1002208

Name: CVE-2018-1002208
Creator: NVD / NIST
Published: 2018-07-25T17:29:02.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 8.93%

Last modified Jun 17, 2026

CVE-2018-1002208 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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'.. EPSS estimates a 8.93% chance of exploitation in the next 30 days.

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'.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

8.93%

94.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sharpziplib Project	Sharpziplib	<= 0.86.0.518

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

Timeline

Published: Jul 25, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1002208?

How severe is CVE-2018-1002208?

CVE-2018-1002208 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 8.93% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1002208?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1002208?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST