CVE-2021-32507Network attack vector

Authenticated arbitrary file read via unrestricted Url path

Published Jul 7, 2021 · Updated Sep 16, 2024

Absolute path traversal in QSAN Storage Manager 3.3.1 and earlier allows remote authenticated users to read arbitrary system files. FileDownload treats its Url parameter as an unrestricted path, allowing resolution outside the intended download area. A valid low-privilege account is required, and successful exploitation discloses file contents without altering them.

CVSS severity6.5
Medium
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Absolute path traversal in QSAN Storage Manager 3.3.1 and earlier allows remote authenticated users to read arbitrary system files. FileDownload treats its Url parameter as an unrestricted path, allowing resolution outside the intended download area. A valid low-privilege account is required, and successful exploitation discloses file contents without altering them.

The record

CVE
CVE-2021-32507
Published
Jul 7, 2021
Updated
Sep 16, 2024
Vendor
QSAN Technology, Inc.
Product
QSAN Storage Manager (QSM)
Classifications
CWE-36, CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=3.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

QSAN Technology, Inc. · QSAN Storage Manager (QSM)version=unspecified <=3.3.1

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
6.5TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-36Absolute Path Traversal
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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