CVE-2025-0251
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 · uneditedHCL IEM is affected by a concurrent login vulnerability. The application allows multiple concurrent sessions using the same user credentials, which may introduce security risks.
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 · moderate confidenceHCL IEM contains a concurrent login vulnerability that allows multiple active sessions using the same user credentials. This session management weakness enables an attacker with compromised credentials to establish concurrent sessions alongside legitimate users, potentially facilitating session hijacking, data theft, or account takeover.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 1.2CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
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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Verify HCL IEM versionCheck the installed version of Hcltech Intelliops Event Management (HCL IEM). This can typically be found in the product's about page, installation directory metadata, or by querying the product's built-in version command if available.Affected if The installed version is exactly 1.2 (Hcltech Intelliops Event Management 1.2)
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Check session management configurationInspect the session management configuration files or settings panel within the HCL IEM administration console. Look for settings related to concurrent session limits, session timeout, or session concurrency controls.Affected if No configuration exists to limit concurrent sessions per user, or the concurrent session limit is set to allow unlimited sessions
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Attempt concurrent login testLog in to HCL IEM with a test account from one browser or session, then attempt to log in with the same credentials from a different browser, device, or incognito window.Affected if Both login attempts succeed and remain active simultaneously, indicating the system allows concurrent sessions
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Review session tracking mechanismExamine the application's session tracking mechanism by reviewing session IDs or active session data in the system. Check whether the backend creates new session records for each login without validating or terminating existing valid sessions for the same user.Affected if New sessions are created without invalidating or tracking existing sessions for the same user account
You are affected if HCL IEM version 1.2 is installed and the system permits multiple simultaneous active sessions using the same credentials without enforcement of session concurrency controls.
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.
From vendor dataImplement session concurrency controls to either prevent multiple simultaneous sessions per user or automatically terminate existing sessions when a new login occurs. Additionally, enforce account lockout policies and monitor for suspicious concurrent session activity.
- Consultation3.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,720.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-0251 — 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-2025-0251 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
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