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63 New Flaws (Including 0
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Critical N-able N-central Vulnerability and Active Exploitation
N-able N-central pre-auth RCE zero-day CVE-2026-86218 (CVSS 10.0) is exploited in the wild; on-prem admins must upgrade to 2026.3 HF4.
N-able disclosed a third N-central vulnerability, CVE-2026-86218, a pre-authentication RCE rated CVSS 10.0, and released hotfix 2026.3 HF4 superseding build 2026.3.1.13. Huntress reproduced an exploit chain involving an authentication bypass (CVE-2026-86206/CVE-2026-86207) after a fully patched customer's N-central production server was compromised on September 4. Attackers appended strings like .invalid to account names and probed the /remoteControlAction.do?method=getPierDetails endpoint; Huntress worked with Cloudflare to disable adversary tunnel infrastructure. Hosted N-central instances are already patched; on-prem administrators must upgrade immediately.
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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.
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AI-Generated Exploit Scripts Target Siemens S7 PLCs in U.S. Critical Infrastructure
NSA, CISA, FBI, DOE and EPA warn that actors use AI-generated Python scripts to exploit internet-exposed Siemens S7 PLCs at U.S. critical infrastructure.
A joint advisory from NSA, CISA, FBI, DOE and EPA describes an active threat in which AI-generated exploit scripts disguised as legitimate monitoring tools target Siemens S7 Series PLCs (S7-200 through S7-1500, including F-series safety controllers). The actors use Censys and ZoomEye scanning to find internet-exposed, outdated PLCs and a custom Python script using snap7 libraries over the S7comm protocol for initial access, credential access and denial of service; no attribution was given. Targeted sectors include Critical Manufacturing, Energy, Water and Wastewater, Chemical, Food and Agriculture, and Commercial Facilities, with potential for process disruption and cascading impacts. A related Dream report details a near-autonomous AI-agent campaign (July 1-4, 2026, 12 waves) against Taiwan government entities, using Hermes and OpenClaw agents with eight parallel sub-agents to crack 85 accounts via password spraying and exfiltrate over 2,564 personnel records, SSO client secrets and database credentials.
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Firefox, Chrome, Adobe, and VMware Updates Fix Multiple Critical Security Flaws
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