CVE-2021-31925
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 · uneditedPexip Infinity 25.x before 25.4 has Improper Input Validation, and thus an unauthenticated remote attacker can cause a denial of service via the administrative web interface.
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 confidencePexip Infinity versions prior to 25.4 contain an improper input validation vulnerability in the administrative web interface that allows unauthenticated remote attackers to trigger a denial of service condition without authentication.
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>= 25.0, < 25.4CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 Pexip Infinity is deployedCheck for Pexip Infinity virtual appliance or installation in your environment - this is typically deployed as a VMware/Hyper-V VM with a management web interfaceAffected if Pexip Infinity software is running in your environment
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Determine the installed Pexip Infinity versionLog into the Pexip Infinity administrative web interface and navigate to the system status or about page to view the software version, or use the CLI command 'version' if you have SSH access to the management nodeAffected if The installed version is 25.0, 25.1, 25.2, or 25.3 (any version >= 25.0 but < 25.4)
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Verify the administrative web interface is accessibleConfirm that the Pexip Infinity admin interface (typically on port 443 or 8443) is reachable from network segments accessible to potential attackersAffected if The admin interface is exposed to untrusted networks without network segmentation or authentication barriers
You are affected if Pexip Infinity version is 25.0 through 25.3 inclusive AND the administrative web interface is network-accessible to unauthenticated users.
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 data25.4
Upgrade Pexip Infinity to version 25.4 or later to address the improper input validation vulnerability. If immediate patching is not possible, consider network segmentation to limit exposure to the administrative interface.
- Consultation4.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,728.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-31925 — 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-2021-31925 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
- No spam, self-promotion, credentials, or personal data