PT-2026-29143 · Tenda · Tenda Ch22

Ltzhust2 · Published 2026-03-30 · Updated 2026-03-30 · CVE-2026-5155

Positive Technologies · (AI Summary)

CVSS v2.0

9.0

High

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda CH22 version 1.0.0.1

Description A flaw exists in Tenda CH22 version 1.0.0.1 within the Parameter Handler component. Specifically, the fromAdvSetWan function in the /goform/AdvSetWan file is susceptible to a stack-based buffer overflow. This occurs through manipulation of the wanmode argument, allowing for remote exploitation. 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

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-5155

Affected Products

Tenda Ch22

References · 7

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_47/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5155 · Security Note
• https://vuldb.com/submit/780207 · Note
• https://vuldb.com/vuln/354187/cti · Note
• https://tenda.com.cn · Note
• https://vuldb.com/vuln/354187 · Note
• https://twitter.com/CveFindCom/status/2038756211059839045 · Twitter Post