VulnerabilityBleeping Computer
10.0 — CRITICAL
Critical SimpleHelp flaw exploited to deploy new stealer malware
Hackers are exploiting a recently disclosed critical vulnerability (CVE-2026-48558) in SimpleHelp to deploy Djinn Stealer, a previously undocumented cross-platform information stealer targeting Windows, macOS, and Linux. [...]
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
A critical vulnerability in SimpleHelp (CVE-2026-48558) was exploited to deploy Djinn Stealer, a cross-platform information stealer targeting Windows, macOS, and Linux, allowing attackers to steal credentials for AI development tooling and potentially inherit authorized access to repositories, cloud resources, databases, and APIs.
⚙️Technical Details
CVEs
CVE-2026-48558
Affected Systems
SimpleHelp servers using OpenID Connect authentication protocol
Attack Vectors
NETWORK
💥Impact Assessment
Severity: critical
Who Is at Risk
system administrators of managed service providers, IT departments, helpdesks, and system administratorsSeverity: critical
🛡️Recommended Actions
1Prioritize updating SimpleHelp instances to the latest versions
2Invalidating unrecognized technician sessions
3Rotating all credentials and API keys
📦Affected Products
SimpleHelp software
🔐NVD Verified DataVERIFIED
CVE-2026-48558 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeaknesses
CWE-347
Read the full article
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