CVE-2025-41707
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 · uneditedThe websocket handler is vulnerable to a denial of service condition. An unauthenticated remote attacker can send a crafted websocket message to trigger the issue without affecting the core functionality.
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 confidenceThe websocket handler in this application contains a vulnerability that allows an unauthenticated remote attacker to trigger a denial of service condition by sending a crafted websocket message. The attack specifically impacts the websocket handler's availability without affecting the application's core functionality.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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 websocket endpoint exposureReview your application's network configuration and routing tables to determine if websocket endpoints (ws:// or wss://) are publicly accessible or exposed to untrusted networks. Check load balancer, reverse proxy, or API gateway configurations for websocket route definitions.Affected if Websocket endpoints are reachable from untrusted/network-facing interfaces without authentication controls
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Verify websocket handler is enabledCheck application configuration files, startup parameters, or module listings to confirm the websocket handler component is actively loaded and processing requests. Look for settings like 'websocket.enabled', 'ws.handler', or similar websocket-related configuration flags.Affected if The websocket handler module or feature is explicitly enabled in the application configuration
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Inspect websocket message processing configurationReview application logs and runtime configuration for websocket message handling settings. Check if there are limits on message size, rate, or connection duration defined. Look for any custom websocket message validators or filters.Affected if Websocket message handling lacks size limits, rate limiting, or message validation controls
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Check for DoS indicators in websocket logsExamine application logs, especially websocket-specific logs, for patterns indicating connection exhaustion, message flood attempts, or handler crashes. Look for error messages related to websocket handler failures.Affected if Logs show websocket handler instability, frequent crashes, or abnormal connection patterns from unauthenticated sources
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Confirm authentication status on websocket endpointsReview authentication and authorization configuration for websocket endpoints. Determine if the websocket handler permits unauthenticated connections or requires valid authentication tokens/sessions before accepting messages.Affected if Websocket endpoints allow connections without requiring authentication or valid session tokens
The environment is affected if the websocket handler is enabled, exposed to network access, and accepts unauthenticated connections without adequate rate limiting or message validation controls.
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 dataApply vendor-supplied patches when available. In the interim, consider implementing rate limiting on websocket endpoints and deploying a web application firewall (WAF) to filter potentially malicious websocket messages.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41707 — 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-2025-41707 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
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