PT-2026-24010 · Tenda · Tenda I3

Svigo · CVE-2026-3801 · Published 2026-02-27 · Updated 2026-03-13

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda i3 version 1.0.0.6(2204)

Description A stack-based buffer overflow exists in the formSetAutoPing function of the file /goform/setAutoPing in Tenda i3 version 1.0.0.6(2204). Manipulation of the ping1 or ping2 argument can trigger the overflow. The issue is remotely exploitable and an exploit has been made public.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to the /goform/setAutoPing file. Avoid manipulating the ping1 or ping2 arguments in the affected function.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2026-08773

CVE-2026-3801

Affected Products

Tenda I3

References · 18

• 🔥 https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-setautoping-ping1-buffer-overflow · Exploit
• 🔥 https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-setautoping-ping2-buffer-overflow · Exploit
• https://bdu.fstec.ru/vul/2026-08773 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-3801 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3801 · Vendor Advisory
• https://tenda.com.cn · Note
• https://vuldb.com/?ctiid.349768 · Note
• https://vuldb.com/?id.349768 · Note
• https://twitter.com/CveFindCom/status/2030866541860782125 · Twitter Post
• https://vuldb.com/?submit.768982 · Note
• https://twitter.com/VulmonFeeds/status/2030872474024308802 · Twitter Post
• https://t.me/CVEtracker/46861 · Telegram Post
• https://twitter.com/cyberbivash/status/2030875861017055646 · Twitter Post
• https://twitter.com/CVEarity/status/2031420984398659769 · Twitter Post
• https://twitter.com/CVEnew/status/2031122588311617907 · Twitter Post