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.
The record classifies CVE-2026-84869 under weakness classes CWE-862, CWE-269. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 65 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.9 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 0.6% probability of exploitation in the next 30 days, higher than 51.1% of all scored CVEs
- CISA KEV
- Listed since 2026-09-11, federal remediation deadline 2026-09-14
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2026-09-08
Is CVE-2026-84869 being exploited?
CISA added CVE-2026-84869 to the Known Exploited Vulnerabilities catalog on 2026-09-11, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-09-14 under BOD 22-01. It currently carries a trending score of 65 in the Threadlinqs vulnerability feed.
Affected products and versions
- ConnectWise: ScreenConnect
How to fix CVE-2026-84869
Vendor advisory: https://www.connectwise.com/company/trust/advisories. Because CVE-2026-84869 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-09-14. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2026-84869
4 tracked threats in the Threadlinqs corpus reference CVE-2026-84869, either in the campaign’s CVE list or as an indicator on the campaign record.
- SCKit Campaign: Rogue ScreenConnect Clients Deployed Across 288 Devices at 48 Organizations via Hijacked ScreenConnect Panels and RMM+ Extension — HIGH · 2026-11-12
- Cisco Secure FMC Exploitation (CVE-2026-20079, CVE-2026-20316) by Qilin Affiliate UAT-11988 and Sandworm-Linked UAT-11823, with ScreenConnect (CVE-2026-84869) and PaperCut (CVE-2026-81578/82078) Management-Layer Exploitation — CRITICAL · 2026-11-12
- Threat Intelligence Snapshot Week 37 2026: FortiGate CVE-2025-25249 Exploitation (PivotC2), StyleSmuggler Magento/Adobe Commerce Zero-Day (CVE-2026-75650), BigBear 2.0 AiTM and Related Campaigns — HIGH · 2026-11-01
- CISA Warns of Active Exploitation of Critical ConnectWise ScreenConnect Flaw (CVE-2026-84869, CVSS 9.9) — CRITICAL · 2026-09-16
Sources
Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, GitHub Security Advisories. This product uses the NVD API but is not endorsed or certified by the NVD.