CVE-2025-7876
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 classified as critical was found in Metasoft 美特软件 MetaCRM up to 6.4.2. This vulnerability affects the function AnalyzeParam of the file download.jsp. The manipulation of the argument p leads to deserialization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceA deserialization vulnerability exists in MetaCRM's download.jsp file through the AnalyzeParam function. By manipulating the 'p' parameter, an attacker can trigger unsafe deserialization remotely, potentially leading to 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<= 6.4.2CVSS 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
- 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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Confirm MetaCRM installationSearch for 'Metacrm' or 'MetaCRM' in installed applications, or check for the presence of the web application directory on the serverAffected if MetaCRM software is found on the system
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Determine installed Metacrm versionCheck application metadata files, version info in the CRM admin panel, or examine the download.jsp file header/comment for version stringsAffected if Installed version is 6.4.2 or lower
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Locate vulnerable download.jspIdentify the web root directory and locate the download.jsp file - typically found in web-accessible paths under the Metacrm application directoryAffected if The download.jsp file exists in the web application path
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Check AnalyzeParam function exposureReview the application's URL routing to determine if download.jsp is directly accessible via HTTP/HTTPS without authentication barriersAffected if download.jsp is exposed and reachable via web requests without requiring authentication
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Verify parameter acceptanceSend a test request to download.jsp with a benign 'p' parameter value to confirm the application processes this parameterAffected if The application accepts and processes the 'p' parameter without rejecting it
A system is affected if it runs Metasoft Metacrm version 6.4.2 or lower with the download.jsp file accessible and the 'p' parameter functional.
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 strict input validation on the 'p' parameter to reject malicious payloads, deploy a WAF rule to block deserialization attack patterns, and since the vendor is unresponsive, consider upgrading to an alternative CRM solution if no official patch becomes available.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-7876 — 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-2025-7876 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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