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Unpatched Calix GS5239XG router flaw exposes home devices to internet

Researcher Brian Khan Quintana found that Calix's GS5239XG (GigaSpire 7u10txg) fiber gateway exposes its UPnP control service on the public WAN interface without authentication, tracked as CVE-2026-75501. Anyone online can send a single unauthenticated request to add or remove port-forwarding rules, letting them bypass NAT and firewall protections. Calix did not respond to disclosure attempts, so CERT/CC coordinated a public release of the details.

bleepingcomputer.com · 2026-08-24

Historic Dutch dredging methods offer clues for cutting fossil fuel use

An analysis of the Netherlands' waterway maintenance history shows that dredging was long done by hand, animal, wind and tidal power before the switch to oil-burning ships that now consume up to 3,000 litres of fuel per hour. Today the country removes 30 to 35 million cubic metres of silt annually to keep its harbours, canals and rivers navigable, a task growing more demanding as ships get bigger and cargo shifts from road to water.

solar.lowtechmagazine.com · 2026-08-24