PT-2025-40976 · Tenda · Tenda Ac20

Cymiao · Published 2025-09-29 · Updated 2025-10-12 · CVE-2025-11385

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 AC20 versions up to 16.03.08.12

Description A flaw exists in Tenda AC20 that allows remote attackers to trigger a buffer overflow. The issue is located in the sscanf function within the /goform/fast setting wifi set file. The timeZone argument is susceptible to manipulation, leading to the overflow. The exploit for this issue has been publicly disclosed.

Recommendations Update Tenda AC20 to a version later than 16.03.08.12. 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:2025-13233

CVE-2025-11385

Affected Products

Tenda Ac20

References · 15

• 🔥 https://github.com/cymiao1978/cve/blob/main/11.md#poc · Exploit
• 🔥 https://github.com/cymiao1978/cve/blob/main/11.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-11385 · Security Note
• https://osv.dev/vulnerability/CVE-2025-11385 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13233 · Security Note
• https://vuldb.com/?id.327312 · Note
• https://twitter.com/CveFindCom/status/1975496281809117255 · Twitter Post
• https://vuldb.com/?ctiid.327312 · Note
• https://vuldb.com/?submit.664922 · Note
• https://t.me/CVEtracker/34304 · Telegram Post
• https://tenda.com.cn · Note
• https://twitter.com/cracbot/status/1977328446918238459 · Twitter Post
• https://t.me/cveNotify/137619 · Telegram Post
• https://twitter.com/CVEnew/status/1975499072422170720 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1975511681120768029 · Twitter Post