The Chinese espionage group Spiral twice exploited an internet-facing SolarWinds server in 2020, according to researchers from the Secureworks Counter Threat Unit. ("SolarWinds letters" by sfoskett at[email protected]/16100325080 is licensed under CC BY-NC-SA 2.0)

Researchers from Trend Micro found two remote code execution (RCE) vulnerabilities – one of them critical – that could allow an attacker to take over SolarWinds Orion systems.

Trend Micro’s Zero Day Initiative (ZDI) team, which has worked closely with SolarWinds to help security teams respond to the massive hack, said the severity score of the second RCE was rated “high” as opposed to critical. 

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