Code Injection RCE in QNAP Malware Remover
CVE-2025-11837 is a code injection vulnerability in QNAP Malware Remover. According to the provided material, the flaw exists in the malware_remover.cgi endpoint, where improper validation of a user-supplied string allows that input to be used to execute Python code. QNAP describes the issue as improper control of generation of code, which maps to CWE-94. The vulnerability affects Malware Remover versions prior to 6.6.8.20251023 and was demonstrated against QNAP TS-453E devices in the Pwn2Own context. Successful exploitation does not require authentication and can be performed by a remote or network-adjacent attacker, resulting in arbitrary code execution and bypass of the product's protection mechanism.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A NAS-targeting vulnerability used to spread the AryStinger Standard variant, enabling compromise of NAS devices for reconnaissance, tunneling, and remote execution.
A QNAP vulnerability affecting Malware Remover, referenced as one of the zero-day vulnerabilities patched after Pwn2Own Ireland 2025.
A high-severity code injection vulnerability in Malware Remover that allows remote attackers to bypass protection mechanisms via improper control of code generation.
A zero-day vulnerability in QNAP Malware Remover, demonstrated at Pwn2Own 2025 and patched by QNAP.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.