CVE-2021-32518: QSAN Storage Manager - UNIX Symbolic Link (Symlink) Following

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-07 · updated 2026-06-17
Weakness: CWE-61

Description

A vulnerability in share_link in QSAN Storage Manager allows remote attackers to create a symbolic link then access arbitrary files. The referred vulnerability has been solved with the updated version of QSAN Storage Manager v3.3.3.

Affected products

QSAN Storage Manager: before 3.3.3 — fixed in 3.3.3

How to fix

Upgrade to a fixed version: QSAN Storage Manager 3.3.3. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/tw/cp-132-4874-79edc-1.html
https://www.twcert.org.tw/tw/cp-132-4874-79edc-1.html

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