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CVE-2026-28335: SolarWinds Dameware Improper Input Validation Vulnerability

CVE-2026-28335 explained: high Improper Input Validation in SolarWinds Dameware. CVSS 8.4. Affected versions, detection, fixes and CTEM priority.

Last updated: Nov 3, 2026

CVSS
8.4 HIGH
EPSS
n/a
CISA KEV
Not listed
CWE
CWE-20

Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS

CVE-2026-28335 Overview

SolarWinds Dameware was found to be affected by a buffer overflow vulnerability that can result in remote code execution. Authentication is required.

Critical Impact

Remote, authenticated attackers can exploit this Improper Input Validation in SolarWinds Dameware. The CVSS base score is 8.4 (High).

Affected Products

  • SolarWinds Dameware: see the vendor advisory for the exact affected versions

Discovery Timeline

  • 2026-11-03: CVE-2026-28335 published to the National Vulnerability Database by psirt@solarwinds.com
  • 2026-11-03: last updated in the NVD database

Technical Details for CVE-2026-28335

Vulnerability Analysis

CVE-2026-28335 is a Improper Input Validation weakness (CWE-20: Improper Input Validation) in SolarWinds Dameware. Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. The software trusts input without checking it is safe.

With a CVSS base score of 8.4, apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Root Cause

The weakness is classified as CWE-20: Improper Input Validation. The software trusts input without checking it is safe.

Attack Vector

Based on the CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. Attack complexity is high complexity.

No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.

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

Detection Methods for CVE-2026-28335

Detection Strategies

  • Inventory every instance of SolarWinds Dameware and compare the running version with the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Run an authenticated vulnerability scan once your scanner ships a check for this CVE.

Monitoring Recommendations

  • Forward SolarWinds Dameware application, access and audit logs to your SIEM for retrospective hunting.
  • Alert on new processes, configuration changes or outbound connections from the affected service.
  • Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.

How to Mitigate CVE-2026-28335

Immediate Actions Required

  • Apply the fixed version of SolarWinds Dameware named in the vendor advisory.
  • Prioritize internet facing and business critical instances first.
  • Rescan after the change to confirm the exposure is closed.

Patch Information

Use the fixed version listed in the vendor advisory for SolarWinds Dameware.

Workarounds

  • If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.

CWE References

Technical References

This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.

Frequently asked questions

CVE-2026-28335 is a high severity Improper Input Validation in SolarWinds Dameware with a CVSS score of 8.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

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