CVE-2025-33101
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 · uneditedIBM Concert 1.0.0 through 2.1.0 could allow an attacker to obtain sensitive information using man in the middle techniques due to improper clearing of heap memory.
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 confidenceIBM Concert versions 1.0.0 through 2.1.0 contains a vulnerability where heap memory containing sensitive data is not properly cleared after use. An attacker positioned on the network path (man-in-the-middle) can intercept and potentially recover this sensitive information from residual heap data.
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>= 1.0.0, < 2.2.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 IBM Concert installationCheck for IBM Concert on the system using package manager queries (rpm, dpkg, brew) or by searching for the concert binary/serviceAffected if IBM Concert is not found - not affected
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Determine installed versionRun 'concert --version' or check the installed package version through your system's package management toolsAffected if Unable to determine version - further investigation needed
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Compare version to vulnerable rangeCheck if the installed version is >= 1.0.0 and < 2.2.0Affected if Version is 1.0.0 through 2.1.x (any minor/patch version)
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Verify service is network-exposedConfirm IBM Concert is configured to accept network connections or expose APIs that could be intercepted by a MITM attackerAffected if Service is not network-accessible - exploit likelihood reduced but version still vulnerable
System is affected if IBM Concert version 1.0.0 through 2.1.x is installed and accessible over the network.
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 · scoped2.2.0
Apply IBM's patch for this vulnerability when available. In the interim, use network segmentation, VPN tunnels, or other controls to reduce the likelihood of MITM attacks and ensure communications occur only over trusted networks.
2.2.0
- Review IBM Concert release notes for version 2.2.0 to understand changes and any prerequisites
- Ensure you have a complete backup of your current IBM Concert configuration and data
- Consult IBM official documentation for the upgrade procedure specific to your deployment model (on-premises, cloud, etc.)
- Follow the documented upgrade process to migrate from your current version (1.0.0-2.1.x) to version 2.2.0
- After upgrading, verify that IBM Concert is functioning correctly and that sensitive data is properly handled
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-33101 — 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-2025-33101 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data