PT-2026-7024 · Tenda · Tenda Ac9

Jfkk · Published 2026-01-31 · Updated 2026-02-09 · CVE-2026-2191

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 AC9 version 15.03.06.42 multi

Description A flaw exists in the Tenda AC9 device. The formGetDdosDefenceList function is susceptible to a stack-based buffer overflow when the security.ddos.map argument is manipulated. This issue can be exploited remotely. The exploit code has been publicly released.

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

Exploit

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

BDU:2026-02495

CVE-2026-2191

Affected Products

Tenda Ac9

References · 11

• 🔥 https://github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2191 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2191 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02495 · Security Note
• https://vuldb.com/?ctiid.344894 · Note
• https://twitter.com/CVEnew/status/2020632600445096367 · Twitter Post
• https://vuldb.com/?submit.749800 · Note
• https://tenda.com.cn · Note
• https://vuldb.com/?id.344894 · Note
• https://t.me/CVEtracker/44139 · Telegram Post
• https://t.me/cveNotify/151335 · Telegram Post