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SimpleHelp RMM flaw could give attackers full access to managed endpoints (CVE-2026-48558)

Help Net Securityby @zeljkazorz ()2 min read2 · 1 read
Analyze CVE-2026-48558 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-48558
Authentication Bypass via Forged OIDC Tokens in SimpleHelp
9.580%KEV
KEV

From the original article

2 min read at helpnetsecurity.com

A critical vulnerability (CVE-2026-48558) in SimpleHelp, a popular remote monitoring and management (RMM) tool, can be exploited remotely by unauthenticated attackers to create a new “Technician” account and use it to remote into managed endpoints, execute scripts, and more. Maliciously “forged” Technician account (Source: Horizon3.

Help Net Security

By @zeljkazorz · helpnetsecurity.com

Read the full article at Help Net Security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.