VulnerabilityModified
CVE-2025-40553
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.
CRITICAL 9.8EPSS 60.4%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 60.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 60.39% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- solarwinds/web help desk
- Source
- psirt@solarwinds.com
References
- https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htmRelease Notes
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40553Vendor Advisory
- https://github.com/watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553/blob/main/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553.py
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.