PT-2026-28666 · Tenda · Tenda Ac5

Wxhwxhwxh_Mie · Published 2026-03-26 · Updated 2026-03-27 · CVE-2026-4903

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 AC5 version 15.03.06.47

Description A flaw exists in the function formQuickIndex located in the file /goform/QuickIndex within the POST Request Handler component. Manipulation of the PPPOEPassword argument can lead to a stack-based buffer overflow. This issue can be exploited remotely. An exploit has been published and is available for use.

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

Exploit

Memory Corruption

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-787

CWE-119

CWE-121

Related Identifiers

CVE-2026-4903

Affected Products

Tenda Ac5

References · 8

• 🔥 https://lavender-bicycle-a5a.notion.site/Tenda_AC5_QuickIndex_PPPOEPassword-32053a41781f808dae98f99c99bcb21c?source=copy_link · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4903 · Security Note
• https://vuldb.com/?id.353654 · Note
• https://twitter.com/CVEnew/status/2037513415439053144 · Twitter Post
• https://vuldb.com/?submit.777380 · Note
• https://vuldb.com/?ctiid.353654 · Note
• https://tenda.com.cn · Note
• https://twitter.com/CveFindCom/status/2037306756351594971 · Twitter Post