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Russian FSB Exploits Vulnerable Routers to Target Critical Infrastructure

ID: bdf30d70-cedc-5628-a5f3-a0d037cf8720

STIX ID: report--bdf30d70-cedc-5628-a5f3-a0d037cf8720

Feed Name: ThreatCluster

Threat Score
90/100

Date Published: 2026-07-13

Date Updated: 2026-07-16

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A 21-agency joint advisory warns that Russia's FSB Center 16 is actively exploiting poorly configured routers (default/weak SNMP credentials and legacy protocols) and known Cisco vulnerabilities (CVE-2018-0171, CVE-2008-4128) to infiltrate critical infrastructure sectors—defense, energy, healthcare, and finance—with links to a December 2025 attempted energy-grid attack that could have impacted ~500,000 people; UK/EU sanctions target 24 related actors.

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