PT-2025-23975 · Tenda · Tenda Ch22

Xubeining · Published 2025-06-04 · Updated 2025-06-06 · CVE-2025-5685

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Description A critical vulnerability was found in Tenda CH22, affecting the formNatlimit function of the file /goform/Natlimit. The manipulation of the page argument leads to a stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Recommendations As a temporary workaround, consider disabling the formNatlimit function until a patch is available. Restrict access to the /goform/Natlimit file to minimize the risk of exploitation. Avoid using the page argument in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-121

CWE-119

Related Identifiers

BDU:2025-06499

CVE-2025-5685

Affected Products

Tenda Ch22

References · 14

• 🔥 https://github.com/xubeining/Cve_report/blob/main/A%20remote%20code%20execution%20vulnerability%20in%20the%20router%20CH22%20V1.0.0.1%20manufactured%20by%20Shenzhen%20Jixiangtengda%20Technology%20Co.%2C%20Ltd1.md · Exploit
• https://bdu.fstec.ru/vul/2025-06499 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-5685 · Security Note
• https://osv.dev/vulnerability/CVE-2025-5685 · Vendor Advisory
• https://vuldb.com/?ctiid.311169 · Note
• https://twitter.com/CveFindCom/status/1930718909323202913 · Twitter Post
• https://twitter.com/CVEnew/status/1930720072403722758 · Twitter Post
• https://t.me/cvetracker/25542 · Telegram Post
• https://twitter.com/offseq/status/1930852179851567249 · Twitter Post
• https://vuldb.com/?submit.590153 · Note
• https://tenda.com.cn · Note
• https://twitter.com/VulmonFeeds/status/1930733187614838794 · Twitter Post
• https://vuldb.com/?id.311169 · Note
• https://t.me/cvenotify/124913 · Telegram Post