9.8

CVE-2026-22900: qnap systems inc. qunetswitch Use of Hard-coded Credentials

CVSS: 9.8v3.1CriticalAnalyzed
Published 20-03-2026Last modified 25-03-2026
Open JSON

Vulnerability summary

CVE-2026-22900 is a critical (CVSS 9.8) Use of Hard-coded Credentials vulnerability in qnap systems inc. qunetswitch. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.33%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-03-2026
    PublishedVulnerability first disclosed.
  2. 25-03-2026
    Last modifiedVulnerability information updated.

Description

A use of hard-coded credentials vulnerability has been reported to affect QuNetSwitch. The remote attackers can then exploit the vulnerability to gain unauthorized access. We have already fixed the vulnerability in the following version: QuNetSwitch 2.0.5.0906 and later

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.01 pp

From 0.32% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Qnap1 product
Qnap systems inc.1 product

2 vendors · 2 products

References

1 links