CVE-2025-57220
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 · uneditedAn input validation flaw in the 'ate' service of Tenda AC10 v4.0 firmware v16.03.10.09_multi_TDE01 to escalate privileges to root via a crafted UDP packet.
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 confidenceA privilege escalation vulnerability exists in the 'ate' service of Tenda AC10 v4.0 firmware v16.03.10.09_multi_TDE01. The vulnerability stems from insufficient input validation when processing UDP packets, allowing an authenticated attacker to send specially crafted packets to escalate privileges to root.
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= 16.03.10.09_multi_tde01CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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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Identify the device model and firmware versionAccess the Tenda AC10 router web interface or check via telnet/SSH, then navigate to System Status or Firmware Upgrade page to view the installed firmware version string.Affected if The firmware version displayed is exactly 16.03.10.09_multi_tde01 (no other version numbers)
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Confirm the 'ate' service is present on the deviceAccess the router via telnet or SSH (if enabled) and attempt to locate the 'ate' binary or service process using commands such as 'ps' or by checking /usr/sbin or similar directories for an 'ate' executable.Affected if The 'ate' binary or service process exists on the device and is running
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Determine if the 'ate' service is accessible over the networkPerform a UDP port scan against the router's IP address scanning common UDP ports or the specific port used by the 'ate' service (if known), or attempt to send UDP packets to the device on the port used by 'ate'.Affected if UDP ports used by the 'ate' service are open and reachable from an attacker-controlled network segment
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Verify authentication status to the deviceCheck whether default credentials are still in use or if the router's admin interface is accessible without authentication, as the CVE requires an authenticated attacker.Affected if The router admin interface is accessible using default credentials or an attacker already possesses valid authentication credentials for the device
The environment is affected if the Tenda AC10 is running firmware version 16.03.10.09_multi_tde01, the 'ate' service is present and running, and an attacker can reach the service over the network with valid credentials.
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 firmware update when available; until then, disable or block access to the 'ate' service via firewall rules and restrict network access to the device.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 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 $3,392.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-57220 — 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-2025-57220 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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- Version or environment caveats, and links to real fixes
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