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Page generated: 08 Nov 2026, 12:43 UTC
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CVE-2026-48558

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic sign…

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SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication. No user interaction is required.
CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.9/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 10: +1.50
  • Fresh EPSS: 80.79%: +0.40

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 13 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

SOCRadar
Press · 01 Jul 2026, 07:00 · CVE-2026-48558: SimpleHelp OIDC Auth Bypass Used to Deploy Infostealer Payloads - SOCRadar
Arctic Wolf
Press · 30 Jun 2026, 07:00 · Recommendations for CVE-2026-48558 - Arctic Wolf
Security Affairs
Press · 30 Jun 2026, 07:00 · U.S. CISA adds SimpleHelp flaw to its Known Exploited Vulnerabilities catalog - Security Affairs
Infosecurity Magazine
Press · 30 Jun 2026, 07:00 · Critical SimpleHelp Vulnerability Exploited For Malware Delivery - Infosecurity Magazine
The Hacker News
Press · 30 Jun 2026, 07:00 · Attackers Exploit SimpleHelp CVE-2026-48558 to Deploy TaskWeaver and Djinn Stealer - The Hacker News
See all 13 source documents
Help Net Security
Press · 30 Jun 2026, 07:00 · SimpleHelp vulnerability exploited to deliver mighty Djinn Stealer (CVE-2026-48558) - Help Net Security
SecurityWeek
Press · 30 Jun 2026, 07:00 · Critical SimpleHelp Vulnerability Exploited for Malware Delivery - SecurityWeek
BleepingComputer
Press · 29 Jun 2026, 07:00 · Critical SimpleHelp flaw exploited to deploy new stealer malware - BleepingComputer
DevOps.com
Press · 29 Jun 2026, 07:00 · Attackers Exploit SimpleHelp Flaw to Steal Info from AI Coding Assistants, Clouds - DevOps.com
SC Media
Press · 16 Jun 2026, 07:00 · SimpleHelp vulnerability allows unauthenticated attackers to create privileged accounts - SC Media
Rescana
Press · 16 Jun 2026, 07:00 · Critical CVE-2026-48558 Vulnerability in SimpleHelp Allows Unauthorized Privileged Account Creation via OIDC Authentication Bypass - Rescana
Help Net Security
Press · 16 Jun 2026, 07:00 · SimpleHelp RMM flaw could give attackers full access to managed endpoints (CVE-2026-48558) - Help Net Security
BleepingComputer
Press · 15 Jun 2026, 07:00 · SimpleHelp bug lets hackers create rogue remote support accounts - BleepingComputer

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.9 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
J4ck3LSyN-Gen2/CVE-2026-4855882Python02 Jul 2026, 16:47
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 10; EPSS 80.8%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:13.371876+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
12 Jun 2026, 17:07
First press mention
15 Jun 2026, 07:00
Added to the CISA KEV catalog
29 Jun 2026, 00:00
Latest press mention
01 Jul 2026, 07:00
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
1 repositories
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar