Threats Tagged 'cve-2026-75501'
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Threats Tagged 'cve-2026-75501'
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VU#756733: Calix GS7 XGS GS5239XG residential router contains missing authentication vulnerabilityCVE-2026-75501 0 A vulnerability in the Calix EXOS firmware for the GS7 XGS (GS5239XG) residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without access controls. A remote attacker can send crafted SOAP requests to add, delete, or enumerate port mappings, or to query the external IP address, without authentication. Successful exploitation may enable bypass of the firewall/NAT boundary and exposure of internal LAN services to the public internet. Join the discussion | CERT/CC | 08/21/2026, 14:47:04 UTC Added: 08/21/2026, 14:50:59 UTC |
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