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CVE-2024-6962: Tenda O3 formQosSet stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-07-22 · updated 2026-06-17
• Weakness: CWE-121

Description

A vulnerability classified as critical was found in Tenda O3 1.0.0.10. This vulnerability affects the function formQosSet. The manipulation of the argument remark/ipRange/upSpeed/downSpeed/enable leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-272116. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Tenda O3: all versions

References

• https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/O3V2.0/formQosSet.md
• https://vuldb.com/?ctiid.272116
• https://vuldb.com/?id.272116
• https://vuldb.com/?submit.374583
• https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/O3V2.0/formQosSet.md
• https://vuldb.com/?ctiid.272116
• https://vuldb.com/?id.272116
• https://vuldb.com/?submit.374583

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