CVE-2026-67822

Summary

Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform/wifiSSIDset endpoint. The function formwrlSSIDset uses sprintf to copy user-controlled 'GO' and 'index' parameters into a 64-byte stack buffer without length restriction, leading to stack overflow.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CISA ADP Vulnrichment

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

Additional References

• https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md

References

• https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md

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