CVE-2026-25654
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceSINEC NMS contains an improper authorization vulnerability in its password reset functionality. An authenticated attacker can bypass authorization checks to reset the password of any arbitrary user account, potentially gaining full unauthorized access to the system with the compromised user's privileges.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify SINEC NMS installation and versionLocate the SINEC NMS installation directory or check system inventory/registry for the installed version. Common locations include C:\Program Files\SINEC\NMS or /opt/sinec/nms. Use 'sinec --version' or check the About/Version UI in the application.Affected if Version is present and less than V4.0 SP3 (e.g., V4.0, V3.0, V2.x)
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Verify password reset functionality is accessibleConfirm the password reset endpoint/service is enabled in SINEC NMS. Check the web server configuration (IIS/Apache) and SINEC NMS security settings to ensure the password reset feature is not disabled or restricted by network access controls.Affected if Password reset endpoint is exposed and accessible to authenticated users
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Review authentication logs for password reset activityInspect SINEC NMS authentication and audit logs (typically in logs/ or audit/ directory within the installation) for password reset requests. Look for reset operations performed by non-admin accounts targeting admin or privileged accounts.Affected if Logs show password resets performed by lower-privileged users targeting administrator or elevated accounts
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Check for unauthorized account modificationsReview user account management logs and compare current user list against known baseline. Look for unexpected changes to admin accounts, password changes on privileged accounts, or creation of new administrative users.Affected if Admin account passwords were changed without proper authorization or new admin accounts appeared unexpectedly
Environment is affected if SINEC NMS version is below V4.0 SP3 AND the password reset functionality is accessible to authenticated users, especially non-administrative ones.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade to SINEC NMS version V4.0 SP3 or later which implements proper authorization validation for password reset requests.
SINEC NMS V4.0 SP3
- Identify the current installed version of SINEC NMS
- Review the SINEC NMS release notes for V4.0 SP3 to understand changes and requirements
- Plan an upgrade window and backup the current system configuration
- Upgrade SINEC NMS to version V4.0 SP3 or later
- After upgrade, verify the password reset functionality works correctly
- Verify that only authorized users can reset their own passwords
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-25654 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-25654 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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