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CVE-2025-55583 is an unauthenticated OS command injection vulnerability in D-Link DIR-868L B1 router firmware FW2.05WWB02. The flaw is present in the fileaccess.cgi component, specifically the /dws/api/UploadFile endpoint, where the pre_api_arg parameter is passed to system-level shell execution without proper sanitization or authentication checks. An attacker can send a crafted HTTP request to inject arbitrary shell metacharacters or commands, resulting in direct command execution on the device with root privileges.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command injection vulnerability in the D-Link DIR-868L B1 router exploited by Evooo1Bot.
A command injection vulnerability in the D-Link DIR-868L B1 router that the Evooo1Bot botnet is stated to weaponize.
A command injection vulnerability affecting the D-Link DIR-868L B1 router that was listed among the flaws exploited in attempts linked to Evooo1Bot.
A command injection vulnerability in the D-Link DIR-868L B1 router that Evooo1Bot was observed exploiting.
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.