MikroTik RouterOS Flaw Exposes WireGuard Private Keys
CISA warns of CVE-2026-14227, a session management flaw in MikroTik RouterOS (all versions) that could let low-privilege API users extract WireGuard private keys in plaintext, enabling VPN impersonation and traffic decryption. The vulnerability has a CVSS score of 4.9 (medium) and was reported by Andre Santos.
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“Successful exploitation of this vulnerability could allow an attacker to extract the router's WireGuard private key in plaintext using only low-privilege API access, enabling full VPN impersonation and decryption of all associated traffic.”
Summary last validated Aug 27, 2026
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