ConnectWise patches new flaw allowing ScreenConnect hijacking

2026-03-18T19:23:32Ze59e19a2b0789f84618c5d75bca792d2e9b7fce1b798083f14155cd441917aa7
AI-securityCVE-2026-20643Cisco Secure FMCClickFixConnectWise ScreenConnectDeno-runtimeEU-sanctionsGlassWormLeakNetWebKitdata-breachemail-spoofingfont-rendering-attackiOS-exploitinfostealerransomwarerefund-fraudremote-code-executionsupply-chainzero-day

What happened

Multiple high-impact threats and vulnerabilities reported: a maximum-severity remote code execution zero-day in Cisco Secure Firewall Management Center is being actively exploited by the Interlock ransomware gang since January; ConnectWise patched a cryptographic signature verification flaw in ScreenConnect that can enable hijacking and privilege escalation; Marquis disclosed a ransomware-related data theft affecting ~672K individuals and 74 banks; the GlassWorm supply-chain campaign compromised 400+ code repositories and packages; a new iOS exploit framework called “Darksword” is being used—t

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
bleepingcomputer
Record identifier
e59e19a2b0789f84618c5d75bca792d2e9b7fce1b798083f14155cd441917aa7
Enrichment time
2026-03-18T19:23:32Z
AI-assisted enrichment
Yes

This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.

Record · ConnectWise patches new flaw allowing ScreenConnect hijacking · Baitaphish