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CVE-2025-6950 is a critical authentication bypass vulnerability in Moxa network security appliances and routers caused by the use of a hard-coded secret key for signing JSON Web Tokens used by the authentication mechanism. Because the signing secret is embedded rather than uniquely managed per deployment, an unauthenticated remote attacker can generate forged but valid tokens and present them to the device as proof of identity. This allows bypass of authentication controls and impersonation of arbitrary users, including administrative users. The flaw affects the trust model of the device’s token-based authentication and can directly lead to complete compromise of the affected device.
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No public exploit code observed for this vulnerability.
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12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Hardcoded JWT signing key in Moxa network security devices/routers enabling token forgery and authentication bypass if the key is recovered.
A vulnerability listed as trending; no technical details provided in the content.
Use of hard-coded credentials/secret key for JWT signing in Moxa network security appliances and routers, enabling unauthenticated JWT forgery to bypass authentication and impersonate users, potentially leading to full device compromise.
Une des multiples vulnérabilités affectant des produits Moxa, pouvant contribuer à une élévation de privilèges, une atteinte à la confidentialité des données et/ou un contournement de la politique de sécurité (détails techniques non fournis dans l'avis CERT-FR).
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.