CVE-2021-32840

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22

Affected software

No affected versions have been published.

Timeline

Published: Jan 26, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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