PT-2026-1431 · Tenda · Tenda Ac23

Xuanyu · Published 2026-01-06 · Updated 2026-01-06 · CVE-2026-0640

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 flaw exists in Tenda AC23 version 16.03.07.52 related to a buffer overflow. The issue is located in the /goform/PowerSaveSet file and specifically affects the sscanf function. Manipulation of the Time argument can trigger the overflow. This can be exploited remotely. A public exploit is available.

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

CVE-2026-0640

Affected Products

Tenda Ac23

References · 12

• 🔥 https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md#poc · Exploit
• 🔥 https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-0640 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-0640 · Security Note
• https://twitter.com/vuldb/status/2008678102315233470 · Twitter Post
• https://tenda.com.cn · Note
• https://vuldb.com/?submit.731772 · Note
• https://vuldb.com/?id.339683 · Note
• https://twitter.com/CveFindCom/status/2008579091935404177 · Twitter Post
• https://vuldb.com/?ctiid.339683 · Note
• https://twitter.com/CVEnew/status/2008565816070205621 · Twitter Post
• https://twitter.com/vuldb/status/2008485088372420717 · Twitter Post