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01 Record

CVE-2025-14265

Improper server-side validation in ScreenConnect extension framework

CriticalPUBLISHEDCNA: ConnectWise
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

02 Description

Improper server-side validation in ScreenConnect extension framework

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.36% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 30.4% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-07.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-12-11 14:21Z10 MO AGO
Last updated
2026-02-26 16:21Z8 MO AGO
Reserved
2025-12-08
Assigning CNA
ConnectWise
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-494Download of Code Without Integrity CheckBase
Data version
5.2
Document digest
8887a8a7e496e3957fdc28e95b19082f2197c2712f9beaba7a5e924ec5ee9db1

05 Affected products

VendorProductVersionsPlatforms
ConnectWiseScreenConnectAll versions prior to 2025.8—

06 References

07 Remediation

Cloud: No action is required. ScreenConnect servers hosted in “screenconnect.com” cloud (standalone and Automate/RMM integrated) or “hostedrmm.com” for Automate partners have been updated to remediate the issue. On-prem: * ScreenConnect Partners: Please upgrade to ScreenConnect version 25.8 and update your guest clients to the same version. Visit Download | ScreenConnect page to download and apply the update (access requires a valid on-premises license). * Automate On-Prem Partners with ScreenConnect Integration: Partners using an on-premises ScreenConnect installation integrated with Automate must ensure that the Automate ScreenConnect Extension is updated to version 4.4.0.16 before upgrading the ScreenConnect server to version 25.8. Once confirmed, visit the Automate Product Updates https://docs.connectwise.com/ConnectWise_Automate_Documentation/Automate_Product_Updates page to download and apply the ScreenConnect 25.8 update.