9.8

CVE-2025-11837: qnap systems inc. malware remover Code Injection

CVSS: 9.8v3.1CriticalAnalyzed
Published 02-01-2026Last modified 05-01-2026
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Vulnerability summary

CVE-2025-11837 is a critical (CVSS 9.8) Code Injection vulnerability in qnap systems inc. malware remover. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.2% 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
1.52%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-01-2026
    PublishedVulnerability first disclosed.
  2. 05-01-2026
    Last modifiedVulnerability information updated.

Description

An improper control of generation of code vulnerability has been reported to affect Malware Remover. The remote attackers can then exploit the vulnerability to bypass protection mechanism. We have already fixed the vulnerability in the following version: Malware Remover 6.6.8.20251023 and later

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.52%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

+0.03 pp

From 1.49% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.52%

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