CVE-2025-24956
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 OpenV2G (All versions < V0.9.6). The OpenV2G EXI parsing feature is missing a length check when parsing X509 serial numbers. Thus, an attacker could introduce a buffer overflow that leads to memory corruption.
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 confidenceOpenV2G versions before V0.9.6 contain a buffer overflow vulnerability in the EXI parsing module due to missing length validation when parsing X509 certificate serial numbers. An attacker can exploit this by providing an overly long serial number field, causing a buffer overflow that leads to memory corruption and potential remote code execution.
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< 0.9.6CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 if OpenV2G is installedSearch for OpenV2G binaries, libraries, or components in the system. Common locations include /usr/lib/, /opt/, or installation directories referenced in system documentation.Affected if OpenV2G software is found on the system
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Determine the installed OpenV2G versionUse the package manager, binary version flag (such as --version), or check version information in installed OpenV2G files and compare against 0.9.6.Affected if The installed version is below 0.9.6
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Check if X509 certificate parsing is in useReview application logs, configuration files, or runtime settings that involve X509 certificate handling. Look for EXI-based communication using X509 authentication.Affected if X509 certificate parsing is configured or active with OpenV2G
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Verify EXI parsing module is enabledExamine OpenV2G configuration or application settings that control EXI decoding/encoding, particularly related to certificate processing.Affected if EXI parsing is enabled and processing certificates
A user is affected if OpenV2G version is below 0.9.6 and the EXI parsing module with X509 certificate handling is actively used.
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 · scoped0.9.6
Upgrade to OpenV2G V0.9.6 or later which implements proper length checking on X509 serial number fields during EXI parsing. If immediate patching is not possible, implement input validation and length bounds checking on all X509 parsing operations.
V0.9.6
- 1. Identify the current OpenV2G version in use by checking project dependencies or binary version information
- 2. Obtain the fixed OpenV2G V0.9.6 release from the official upstream source or vendor distribution
- 3. Replace the vulnerable OpenV2G library files with the V0.9.6 versions
- 4. Rebuild and recompile any applications that link against the OpenV2G library
- 5. Verify the upgrade by confirming the new version is loaded and testing the X509 parsing functionality
- 6. Redeploy the updated system into production
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 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 $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-24956 — 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-2025-24956 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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