{"id":"CVE-2025-40553","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-40553","generatedAt":"2026-10-31T06:58:53.071Z","title":"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.","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.","published":"2026-01-28T08:16:03.000Z","lastModified":"2026-06-17T09:21:45.000Z","status":"Modified","sourceIdentifier":"psirt@solarwinds.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["solarwinds/web help desk"],"epss":{"score":0.67975,"percentile":0.99321,"date":"2026-10-30","history":[{"date":"2026-09-24","score":0.65435,"percentile":0.99236},{"date":"2026-09-25","score":0.67975,"percentile":0.993}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 68.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-24T00:00:00.000Z","detail":{"to":0.65435,"from":0.6039,"percentile":0.99236},"summary":"EPSS moved from 60.4% to 65.4% probability of exploitation in the next thirty days."}],"references":[{"url":"https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm","tags":["Release Notes"],"source":"psirt@solarwinds.com"},{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40553","tags":["Vendor Advisory"],"source":"psirt@solarwinds.com"},{"url":"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":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-40553","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}