CVE-2026-84869

CRITICAL CISA KEV
Published Sep 8, 2026 Modified Sep 12, 2026 CWE-269 CWE-862

Description

A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.

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CVSS v3.1 Score

9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0069
Probability of exploitation
0.51%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Sep 11, 2026 Remediation due: Sep 14, 2026

Weakness Type (CWE)

CWE-269 CWE-269
CWE-862 Missing Authorization

Affected Products

Vendor Product
connectwise screenconnect

References

Frequently Asked Questions

What is CVE-2026-84869? +
A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted. It has a CVSS v3.1 base score of 9.9 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2026-84869? +
CVE-2026-84869 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0069, placing it in the 1th percentile for exploitation probability.
What products are affected by CVE-2026-84869? +
CVE-2026-84869 affects products from connectwise, specifically: screenconnect. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-84869? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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