CVE-2025-40553

moderate-risk
Published 2026-01-28

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.

Do I need to act?

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14.5% chance of exploitation in next 30 days
EPSS score — higher than 86% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Solarwinds

References (3)

Release Notes https://documentation.solarwinds.com/en/success_center/whd/content/release_notes...
Vendor Advisory https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40553
https://github.com/watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40...
49
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 12/34 · Low
Exposure 5/34 · Minimal