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FBI warns of Russian hackers exploiting 7-year-old Cisco flaw

ID: 1366fee4-6e78-5b59-be6b-14f84b214116

STIX ID: report--1366fee4-6e78-5b59-be6b-14f84b214116

Feed Name: Bleeping Computer

Threat Score
85/100

Date Published: 2025-08-21

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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The FBI warns that an FSB-linked APT (Berserk Bear) is actively exploiting the Cisco Smart Install vulnerability CVE-2018-0171 to compromise networking devices globally, collect and alter configurations, maintain persistence using custom SNMP tools and the SYNful Knock implant, and conduct reconnaissance against critical infrastructure; Cisco and security teams are urging immediate patching and hardening.

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