CVE-2024-52273
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 · uneditedStack-based Buffer Overflow vulnerability in Shenzhen Tenda Technology Co Tenda AC6V2 (setDoublePppoeConfig->guest_ip_check(overflow arg: mask) modules) allows Overflow Buffers.This issue affects Tenda AC6V2: through 15.03.06.50
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 confidenceStack-based buffer overflow in Tenda AC6V2 routers (firmware through 15.03.06.50) in the guest_ip_check function called from setDoublePppoeConfig. The mask parameter is not properly validated before being copied to a fixed-size stack buffer, allowing an attacker to overwrite return addresses and potentially achieve 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<= 15.03.06.50CVSS 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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Identify Tenda AC6 router on the networkScan network for devices with Tenda AC6 MAC OUI, or access the router web interface at its LAN IP and look for Tenda AC6 branding in the admin panelAffected if The device is a Tenda AC6 or AC6V2 model router
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Determine the installed firmware versionLog into the router web interface, go to Administration > Firmware Upgrade or System Settings > Device Info, and record the firmware version numberAffected if Firmware version is 15.03.06.50 or lower
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Check if PPPoE double connection (setDoublePppoeConfig) is enabledAccess router web interface, navigate to Advanced Settings > PPPoE Configuration or similar menu, and check if 'Double PPPoE' or 'PPPoE Relay' feature is turned onAffected if The PPPoE double connection feature is enabled and accessible
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Verify guest network feature is configuredIn router web interface, go to Guest Network or Access Control settings and check if a guest network is configured with IP assignment enabledAffected if Guest network feature is enabled and uses IP assignment (triggers guest_ip_check function)
A Tenda AC6 router running firmware version 15.03.06.50 or lower with both the PPPoE double connection feature and guest network enabled is vulnerable to remote code execution via the mask parameter overflow.
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 dataUpgrade to a patched firmware version if available; otherwise replace the device. Apply network segmentation to limit exposure and disable remote administration interfaces on WAN-facing interfaces.
- Consultation6.0 h
- Implementation20.0 h
- Testing10.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-52273 — 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-2024-52273 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
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- Version or environment caveats, and links to real fixes
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