CVE-2025-64647
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 2.2.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information
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 confidenceIBM Concert versions 1.0.0 through 2.2.0 implements weaker than expected cryptographic algorithms, which could allow an attacker to decrypt highly sensitive information stored or transmitted by the application.
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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/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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Determine the installed IBM Concert versionRun the IBM Concert version command (e.g., 'ibmconcert --version' or check the product release notes/manifest) to identify the exact version numberAffected if The installed version falls within 1.0.0 through 2.2.0 (inclusive)
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Locate the IBM Concert configuration directoryIdentify the configuration directory or files where IBM Concert stores its settings (commonly found in the installation directory or config folder)Affected if The product is installed and configuration files exist in the expected location
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Inspect cryptographic configuration settingsExamine configuration files for encryption-related settings such as algorithm specifications, key lengths, or cipher suites being usedAffected if Weak cryptographic algorithms (e.g., DES, 3DES, MD5, SHA-1, or AES-128 or lower) are explicitly configured or used as defaults
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Check application logs for algorithm usageReview IBM Concert application logs or debug output for any encryption-related messages that reveal the algorithms in useAffected if Logs indicate the use of deprecated or weak cryptographic algorithms
The environment is affected if IBM Concert version 1.0.0 through 2.2.0 is installed AND weak cryptographic algorithms are configured or being used for data protection.
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 dataUpgrade to IBM Concert version 2.2.1 or later per IBM's security advisory; verify that strong cryptographic algorithms (e.g., AES-256, SHA-256+) are implemented for all encryption operations.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-64647 — 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-2025-64647 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