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FBI: Russian FSB spies exploiting a 7-year-old Cisco bug

Russian spies exploited an unpatched Cisco vulnerability fixed in 2018 to access thousands of critical infrastructure networks across multiple continents, FBI and Cisco Talos reported.

  • On Wednesday, the Federal Bureau of Investigation and Cisco warned that hackers linked to the Russian government exploited a seven-year-old Cisco vulnerability in unpatched infrastructure devices worldwide.
  • Because many devices are end-of-life and unpatched, attackers exploited legacy, unencrypted protocols such as Cisco Smart Install and Simple Network Management Protocol on devices widely used in telecommunications, manufacturing and higher education sectors.
  • The FBI found actors collecting and modifying configuration files from thousands of networking devices associated with U.S. critical infrastructure to enable unauthorized access focused on industrial control systems.
  • Cisco urged customers and administrators to upgrade or disable Smart Install and replace unsupported hardware, while the FBI recommended monitoring for suspicious changes and reporting to the Internet Crime Complaint Center.
  • Researchers attributed the activity to FSB Center 16, targeting telecommunications, higher education and manufacturing organizations across North America, Asia, Africa and Europe; Moscow denies cyber espionage and the Russian embassy in Washington did not respond.
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A group linked to FSB accessed thousands of patchless network devices in strategic sectors for one year, extracting information and ensuring a persistent presence in key telecommunications, energy and manufacturing systems

·Buenos Aires, Argentina
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  • 43% of the sources are Center, 43% of the sources lean Right
43% Right

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Cybersecurity Dive broke the news in on Wednesday, August 20, 2025.
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