CVE-2021-32840
Path Traversal in SharpZipLib
7.3
HIGH
CVSS 3.1
EPSS 1.5%
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.
How to fix CVE-2021-32840
To remediate CVE-2021-32840, upgrade the affected package to a fixed version below.
- —upgrade to 1.3.3 or later
Is CVE-2021-32840 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.3.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |