Vulnerability details

CVE-2026-5604

Tenda CH22

Tenda CH22 Parameter CertLocalPrecreate formCertLocalPrecreate stack-based overflow

CVSS 4.0

8.7High

Official description

A security flaw has been discovered in Tenda CH22 1.0.0.1. The impacted element is the function formCertLocalPrecreate of the file /goform/CertLocalPrecreate of the component Parameter Handler. Performing a manipulation of the argument standard results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

CVSS scores

Score	Version	Source	Vector
8.7High	4.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`
8.8High	3.1	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
8.8High	3.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
9.0High	2.0	CVEProject cvelistV5 (CNA) (VulDB)	`AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR`

Affected products

Vendor	Product	Versions	Source
Tenda	CH22	1.0.0.1	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/vuln/355396 vdb-entrytechnical-description
https://vuldb.com/vuln/355396/cti signaturepermissions-required
https://vuldb.com/submit/785032 third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_52/README.md exploit
https://www.tenda.com.cn/ product

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Details

Published: 2026-04-06
Last updated: 2026-04-06
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

0.68%

Probability of exploitation in 30 days

52.6%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-121
Stack-based Buffer Overflow
CWE-119
Memory Corruption