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CVE-2025-66279 is a command injection vulnerability affecting several QNAP operating system versions. According to QNAP, the issue is reachable through an administrative API and is associated with user deletion API functionality. A remote attacker who has first obtained an administrator account can exploit the flaw to execute arbitrary commands on the underlying system. QNAP classifies the issue as CWE-78, indicating improper neutralization of special elements used in an OS command.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command execution vulnerability in QNAP NAS products involving user deletion APIs.
A command execution vulnerability in QNAP systems reachable through admin APIs; the article indicates one of this pair also gains elevated privileges.
A command injection vulnerability affecting several QNAP operating system versions that could allow a remote attacker with administrator access to execute arbitrary commands.
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.