Week in review: Linux rootkit deployed on F5 BIG-IP APM devices, Cisco FMC bugs exploited
Weekly roundup: Cisco FMC and N-able N-central zero-days exploited in the wild, MikroTik RouterOS hijacks, Microsoft Patch Tuesday ships two exploited zero-days.
State-sponsored and financially-motivated attackers are actively exploiting CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center (FMC), alongside CVE-2026-20316. N-able issued an emergency hotfix for CVE-2026-86218, a critical pre-auth RCE in the N-central RMM platform exploited in the wild. CERT Polska disclosed six RouterOS vulnerabilities being chained to hijack internet-exposed MikroTik devices. Microsoft's September 2026 Patch Tuesday shipped a record patch count including two zero-days, while roughly 67,000 Trezor customers faced phishing after a shipping-partner breach and researchers privately disclosed a zero-click WeChat worm to Tencent.
Actively Exploited Oracle WebLogic Flaw Lets Unauthenticated Attackers Access Critical Data
CISA added actively exploited Oracle WebLogic flaw CVE-2026-21962 (CVSS 10.0) to its KEV catalog, letting unauthenticated attackers access or modify critical data.
CISA added CVE-2026-21962, a CVSS 10.0 improper access control flaw in Oracle HTTP Server and Oracle WebLogic Server Proxy Plug-in, to its Known Exploited Vulnerabilities catalog, citing evidence of active exploitation. Oracle shipped patches in January 2026, and GreyNoise, CloudSEK, and SOCRadar have since reported exploitation attempts, including a lone IP scanning multiple WebLogic, Ivanti, GNU InetUtils, and GLPI vulnerabilities. The flaw is also among several exploited by a China-linked actor delivering the SNOWLIGHT downloader to government and commercial infrastructure in more than 100 countries. Federal civilian agencies must apply fixes by August 27, 2026 under BOD 26-04.
Can AI make threat intelligence easier? One platform thinks so
Feedly positions its AI-driven Threat Intelligence platform to cut CTI collection time, scanning 10,000+ sources with 1,000 AI models and reporting 70% time savings.
A profile of Feedly Threat Intelligence describes how CTI teams such as RH-ISAC reduced threat data collection from 10 hours weekly to 2-3 hours after adoption. The platform scans over 10,000 open web sources using 1,000 AI models to extract TTPs, CVEs and IoCs into a real-time Threat Graph queryable via an Ask AI LLM with source citations. Customers including GreyNoise, Sopra Steria, gematik and GISA reported measurable gains such as 20 hours saved daily and earlier vulnerability flagging than CISA 65% of the time. The product integrates with Anomali ThreatStream, Cortex XSOAR, Microsoft Sentinel and OpenCTI, plus a REST API and GitHub scripts.