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4.9

Insecure storage of sensitive information has been reported to affect QNAP NAS running myQNAPcloud Link. If exploited, this vulnerability allows remote attackers to read sensitive information by ac...

CVE-2021-28815 · published 5 years ago
Summary

Insecure storage of sensitive information has been reported to affect QNAP NAS running myQNAPcloud Link. If exploited, this vulnerability allows remote attackers to read sensitive information by accessing the unrestricted storage mechanism. This issue affects: QNAP Systems Inc. myQNAPcloud Link vers...

What to do
  • Update qnap myqnapcloud_link to version 2.2.21 or later.
Affected software
VendorProductAffected versions
qnap myqnapcloud_link < 2.2.21
cpe:2.3:a:qnap:myqnapcloud_link:*:*:*:*:*:*:*:*
Original advisory text
Insecure storage of sensitive information has been reported to affect QNAP NAS running myQNAPcloud Link. If exploited, this vulnerability allows remote attackers to read sensitive information by ac...
Insecure storage of sensitive information has been reported to affect QNAP NAS running myQNAPcloud Link. If exploited, this vulnerability allows remote attackers to read sensitive information by accessing the unrestricted storage mechanism. This issue affects: QNAP Systems Inc. myQNAPcloud Link versions prior to 2.2.21 on QTS 4.5.3; versions prior to 2.2.21 on QuTS hero h4.5.2; versions prior to 2.2.21 on QuTScloud c4.5.4.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Exploitation
2% chance of attack within 30 days
Type
CWE-922Insecure Storage of Sensitive Information
Timeline
Published16 Jun 2021
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-28815 · NVD
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