CVE-2026-5988
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 vulnerability was detected in Tenda F451 1.0.0.7. This impacts the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. Performing a manipulation of the argument mit_ssid results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.
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 F451 router firmware 1.0.0.7 in the formWrlsafeset function within /goform/AdvSetWrlsafeset. The mit_ssid parameter is not properly validated before being copied to a stack buffer, allowing remote attackers to overflow the buffer and potentially execute arbitrary code.
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= 1.0.0.7CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 modelLog into the Tenda router web interface and check the device model name in the status page, or inspect the device label for 'F451' markingAffected if The device is a Tenda F451 router
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Check the firmware versionIn the router web interface, navigate to System Settings or Firmware Upgrade section to view the current firmware version; alternatively, use telnet or SSH if enabled to run 'cat /proc/version' or check /etc/versionAffected if The installed firmware version is exactly 1.0.0.7
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Verify the web management interface is accessibleAttempt to access the router's web interface from the network; check if port 80 or 443 is open using 'nmap -p 80,443 <router_ip>' or similar port scanAffected if The web management interface (HTTP/HTTPS) is reachable from the network (not just localhost)
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Confirm the vulnerable endpoint existsSend an HTTP POST request to /goform/AdvSetWrlsafeset with a minimal payload (e.g., mit_ssidae=test) and observe the response; use curl: curl -X POST http://<router_ip>/goform/AdvSetWrlsafeset -d 'mit_ssid=test'Affected if The endpoint responds (indicating the function is present in the firmware)
If the device is a Tenda F451 running firmware 1.0.0.7 and its web management interface is network-accessible, the environment 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 dataApply vendor firmware update when available; if no update exists, disable remote administration or restrict access to the management interface via firewall rules to limit attack surface.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 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-2026-5988 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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