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CVE-2021-26606 is a remote code execution vulnerability in Dream Security MagicLine4NX, a PKI security solution providing certificate verification and electronic-signature and data encryption functions. It affects version 1.0.0.17 and earlier. The vulnerability is attributed to insufficient validation of an authorization certificate and is also characterized as a buffer overflow; the precise relationship between these descriptions is not established. An attacker can send a crafted HTTP request to an affected program to execute arbitrary commands or code on the target system. Lazarus Group has exploited the vulnerability to compromise systems within internal networks.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A buffer overflow vulnerability in Dream Security MagicLine4NX versions 1.0.0.17 and earlier that permits remote arbitrary command execution. Lazarus exploits it to compromise internal systems, inject malicious threads into ftp.exe, and facilitate rootkit deployment and anti-malware disabling.
DreamSecurity MagicLine4NX 1.0.0.17 and earlier contains a buffer overflow vulnerability that can be exploited remotely to send arbitrary commands and facilitate malware infection; the article says Lazarus used it to move laterally and compromise internal systems.
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.