PT-2026-29267 · Tenda · Tenda Ch22

Ltzhust2 · Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-5204

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 CH22 version 1.0.0.1

Description A flaw exists in the Parameter Handler component of the Tenda CH22. Specifically, the formWebTypeLibrary function within the /goform/webtypelibrary file is susceptible to a stack-based buffer overflow. This occurs due to manipulation of the webSiteId argument. The attack can be initiated remotely and has been publicly disclosed.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to the /goform/webtypelibrary file.

Exploit

Fix

Stack Overflow

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-119

CWE-787

Related Identifiers

CVE-2026-5204

Affected Products

Tenda Ch22

References · 8

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_49/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5204 · Security Note
• https://tenda.com.cn · Note
• https://vuldb.com/vuln/354332 · Note
• https://vuldb.com/submit/780209 · Note
• https://vuldb.com/vuln/354332/cti · Note
• https://twitter.com/vuldb/status/2038903428244816332 · Twitter Post
• https://twitter.com/CveFindCom/status/2039020614174814468 · Twitter Post