QVPN Device Client

published 2023-10-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-27471

cvss: 5.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

A cleartext transmission of sensitive information vulnerability has been reported to affect QVPN Device Client. If exploited, the vulnerability could allow local authenticated administrators to read sensitive data via unspecified vectors.

We have already fixed the vulnerability in the following version: QVPN Windows 2.2.0.0823 and later

Patch / fix

fixed in 1

QNAP Systems Inc. QVPN Windows 2.2.0.0823

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-19)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.2	CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	4.4	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected products

QNAP Systems Inc. QVPN Windows

Classification

Weakness

CWE-311 Missing Encryption of Sensitive Data
CWE-319 Cleartext Transmission of Sensitive Information

References

qnap.com /en/security-advisory/qsa-23-39
vendor-advisory

Sources

CVE List CVE-2023-23371
NVD CVE-2023-23371

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary