CVE-2024-25748
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 Stack Based Buffer Overflow vulnerability in tenda AC9 AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the fromSetIpMacBind function.
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 stack-based buffer overflow vulnerability exists in the fromSetIpMacBind function of Tenda AC9 router firmware v.15.03.06.42_multi. The vulnerability allows a remote attacker to overflow a stack-allocated buffer, potentially overwriting return addresses and executing arbitrary code with elevated privileges on the device.
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= 5.03.06.42_multiCVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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 the router modelCheck the device label or web interface for the exact model number (AC9) and confirm it is a Tenda AC9 routerAffected if The device is not a Tenda AC9 router (different models are not affected by this specific CVE)
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Check the firmware versionAccess the router web interface (typically at 192.168.0.1) and navigate to System Settings > Firmware Upgrade, or check via CLI if available. Look for the exact firmware version string.Affected if The firmware version is 15.03.06.42_multi (only this exact version is affected)
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Locate the fromSetIpMacBind functionInspect the router firmware binary (if accessible via firmware extraction) for the function symbol 'fromSetIpMacBind' using tools like binwalk and strings, or check the web server binary (httpd) for this exported function.Affected if The fromSetIpMacBind function is present in the firmware binary (this function contains the vulnerability)
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Determine if IP-MAC binding feature is accessibleLog into the router web interface and navigate to Advanced Settings > IP-MAC Binding or similar menu. The vulnerability is triggered when this function processes specially crafted input.Affected if The IP-MAC binding feature is accessible and the web interface is exposed to network (remote exploitation possible)
A Tenda AC9 router running firmware version 15.03.06.42_multi with the fromSetIpMacBind function present and the IP-MAC binding feature accessible is affected by this vulnerability.
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 dataIf vendor firmware update is available, apply it immediately. If no update exists, consider replacing the device with a currently supported model, as embedded devices often lack third-party patching options.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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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-2024-25748 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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