CVE-2025-11837
Published: 02 January 2026
Summary
CVE-2025-11837 is a critical-severity Code Injection (CWE-94) vulnerability in Qnap Malware Remover. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates the CVE by requiring timely patching of the improper code generation flaw in Malware Remover to the fixed version 6.6.8.20251023.
Prevents exploitation of the CWE-94 code injection vulnerability by validating all inputs used in dynamic code generation within Malware Remover.
Mitigates potential arbitrary code execution from the improper code generation by enforcing memory protections like DEP and ASLR in the affected system.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability in public-facing Malware Remover (AV:N) enables exploitation of public-facing application (T1190), specifically for defense evasion by bypassing security tool protections (T1211, T1562.001), with critical RCE-like impacts.
NVD 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…
more
and later
Deeper analysisAI
CVE-2025-11837 is an improper control of generation of code vulnerability (CWE-94) affecting QNAP's Malware Remover software. Published on 2026-01-02, it enables remote attackers to bypass the software's protection mechanism, earning a critical CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Remote, unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation allows bypassing Malware Remover's protection mechanisms, potentially leading to high impacts on confidentiality, integrity, and availability.
QNAP has addressed the issue in Malware Remover version 6.6.8.20251023 and later releases. Additional mitigation details are available in security advisory QSA-25-47 at https://www.qnap.com/en/security-advisory/qsa-25-47.
Details
- CWE(s)