PT-2025-33123 · Tenda · Tenda Ac20

Qmssdxn · Published 2025-08-11 · Updated 2025-08-19 · CVE-2025-8939

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 vulnerability exists in Tenda AC20. The manipulation of the shareSpeed argument in an unknown function within the /goform/WifiGuestSet file leads to a buffer overflow. The attack can be executed remotely, and the exploit has been publicly disclosed and may be used.

Recommendations: Tenda AC20 versions prior to 16.03.08.12: Update to version 16.03.08.12 or later. As a temporary workaround, consider restricting access to the /goform/WifiGuestSet file to minimize the risk of exploitation.

Exploit

Fix

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2025-10977

CVE-2025-8939

Affected Products

Tenda Ac20

References · 17

• 🔥 https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md · Exploit
• 🔥 https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-poc · Exploit
• https://bdu.fstec.ru/vul/2025-10977 · Security Note
• https://osv.dev/vulnerability/CVE-2025-8939 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-8939 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-8939 · Security Note
• https://vuldb.com/?id.319902 · Note
• https://twitter.com/f8sbrightermind/status/1955896902538469555 · Twitter Post
• https://t.me/cveNotify/132443 · Telegram Post
• https://vuldb.com/?submit.631829 · Note
• https://tenda.com.cn · Note
• https://twitter.com/CVEnew/status/1955900281281249313 · Twitter Post
• https://t.me/CVEtracker/29969 · Telegram Post
• https://t.me/cveNotify/132207 · Telegram Post
• https://vuldb.com/?ctiid.319902 · Note