CVE-2021-28813

Insufficiently Protected Credentials Vulnerability in QSW-M2116P-2T2S and QuNetSwitch

HIGH

7.5

CVSS Score

Published: September 10, 2021 at 04:00 AM UTC

Updated: June 17, 2026 at 03:46 AM UTC

6 products affected across 1 vendorQuNetSwitchQsw M2116P 2T2S FirmwareQgd-1600P

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Severity

HIGH7.5

Exploit prediction

EPSS 1%

Description

A vulnerability involving insecure storage of sensitive information has been reported to affect QSW-M2116P-2T2S and QNAP switches running QuNetSwitch. If exploited, this vulnerability allows remote attackers to read sensitive information by accessing the unrestricted storage mechanism.We have already fixed this vulnerability in the following versions: QSW-M2116P-2T2S 1.0.6 build 210713 and later QGD-1600P: QuNetSwitch 1.0.6.1509 and later QGD-1602P: QuNetSwitch 1.0.6.1509 and later QGD-3014PT: QuNetSwitch 1.0.6.1519 and later

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Qsw M2116P 2T2S Firmware · Qnap

95%

v < 1.0.6v < 1.0.6 build 210713

Affected range stops below 1.0.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.0.6 build 210713, so it looks safe — our inference, not a vendor statement

qnap-qsw-m2116p-2t2s (same device)

QuNetSwitch · Qnap

95%

v < 1.0.6.1509v < 1.0.6.1519

Affected range stops below 1.0.6.1509, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.0.6.1519, so it looks safe — our inference, not a vendor statement

qnap-qgd-1600p (environment) · qnap-qgd-1602p (environment) · qnap-qgd-3014pt (environment)

Qgd-1600P · Qnapdevice

80%

All versions

Qgd-1602P · Qnapdevice

80%

All versions

Qgd-3014Pt · Qnapdevice

80%

All versions

Qsw-M2116P-2T2S · Qnapdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.qnap.com/en/security-advisory/qsa-21-37

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.qnap.com/en/security-advisory/qsa-21-37

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-259CWE-522CWE-798CWE-922

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