PT-2026-4723 · Tenda · Tenda Ac23

Xuanyu · Published 2026-01-12 · Updated 2026-01-31 · CVE-2026-1420

Positive Technologies · (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Tenda AC23 version 16.03.07.52

Description A buffer overflow flaw exists in the Tenda AC23 router. The issue is due to the manipulation of the wpapsk crypto argument within the /goform/WifiExtraSet file. This allows for remote exploitation. The exploit has been published.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-00940

CVE-2026-1420

Affected Products

Tenda Ac23

References · 17

• 🔥 https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow_WifiExtraSet/Tenda%20AC23_Buffer_Overflow_WifiExtraSet.md · Exploit
• 🔥 https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow_WifiExtraSet/Tenda%20AC23_Buffer_Overflow_WifiExtraSet.md#poc · Exploit
• https://bdu.fstec.ru/vul/2026-00940 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-1420 · Security Note
• https://osv.dev/vulnerability/CVE-2026-1420 · Vendor Advisory
• https://t.me/cveNotify/149828 · Telegram Post
• https://twitter.com/vuldb/status/2015804691876380801 · Twitter Post
• https://vuldb.com/?submit.736559 · Note
• https://t.me/cveNotify/150141 · Telegram Post
• https://t.me/CVEtracker/42982 · Telegram Post
• https://tenda.com.cn · Note
• https://vuldb.com/?id.342836 · Note
• https://vuldb.com/?ctiid.342836 · Note
• https://twitter.com/cracbot/status/2017191110280650947 · Twitter Post
• https://twitter.com/CveFindCom/status/2015675892123517022 · Twitter Post