
The US Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning that Russian Foreign Intelligence Services are exploiting a vulnerability in popular CI/CD tool TeamCity.
CISA, together with the FBI and NSA, the UK’s National Cyber Security Centre (NCSC), and Poland’s Military Counterintelligence Service (SKW) and CERT Polska (CERT.PL), have together observed the Russian threat actor exploiting a CVE “at a large scale” since September 2023.