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CVE detail

CVE-2026-3564

A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios. ScreenConnect host and guest client agents are not independently affected by this CVE.

CVSS 9.0 · CriticalBuzz score 34.4

Buzz score

Why this CVE is surfacing

Buzz score total 34.4

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
17.9
5 evidence mentions in the snapshot
Diversity score
16.5
4 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
5 source links · newest first
  • 23rd March – Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 23rd March, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Navia Benefit Solutions, a United States-based employee benefits administrator, has disclosed a breach affecting more than 2.6 million individuals after unauthorized access and potential data exfiltration occurred between December 22, 2025 and […]

    vendorresearch.checkpoint.comMar 23, 2026, 1:38 PM
  • Week in review: ScreenConnect servers open to attack, exploited Microsoft SharePoint flawHelp Net Security

    Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: What smart factories keep getting wrong about cybersecurity In this Help Net Security interview, Packsize CSO Troy Rydman breaks down the biggest vulnerabilities in smart factory environments today, from IoT devices and legacy systems to human error. He explains how unmanaged devices, from sensors to robotic components, often go unpatched and become entry points for attackers. Certificate lifespans are shrinking … More →

    newswww.helpnetsecurity.comMar 22, 2026, 9:00 AM
  • Unpatched ScreenConnect servers open to attack (CVE-2026-3564)Help Net Security

    ConnectWise has patched a critical vulnerability (CVE-2026-3564) that could enable attackers to hijack ScreenConnect sessions by abusing ASP.NET machine keys to forge trusted authentication. About CVE-2026-3564 The ScreenConnect remote access platform is popular with managed service providers, IT departments, and technology solution providers. They can opt for the cloud-hosted version or can deploy it on their own servers or in their private cloud. CVE-2026-3564 stems from improper verification of cryptographic signature, can be exploited remotely … More →

    newswww.helpnetsecurity.comMar 20, 2026, 9:37 AM
  • Critical ScreenConnect Vulnerability Exposes Machine KeysSecurityWeek

    Latest ScreenConnect version adds encrypted storage and management to prevent unauthorized access to machine keys.

    newswww.securityweek.comMar 19, 2026, 5:40 PM
  • https://www.connectwise.com/company/trust/security-bulletins/2026-03-17-screenconnect-bulletinwww.connectwise.com

    No excerpt available.

    Vendor Advisorywww.connectwise.comMar 17, 2026, 3:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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