CVE-2026-24110

Summary

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long addDhcpRules data. When these rules enter the addDhcpRule function and are processed by ret = sscanf(pRule, " %d\t%[^\t]\t%[^\n\r\t]", &dhcpsIndex, dhcpsIP, dhcpsMac);, the lack of size validation for the rules could lead to buffer overflows in dhcpsIndex, dhcpsIP, and dhcpsMac.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: total

References

• https://www.tenda.com.cn/material/show/2707
• https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24110

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