High severity · published Apr 5, 2026
CVE-2026-5605
Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
A weakness has been identified in Tenda CH22 1.0.0.1. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
CH22 · Tenda
1.0.0.1 · source: vendor
CF
Ch22 Firmware · Tenda
1.0.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5605
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5605
Exploit
https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_54/README.md
Third Party Advisory
https://vuldb.com/submit/785052
Third Party Advisory
https://vuldb.com/vuln/355397
Permissions Required
https://vuldb.com/vuln/355397/cti
Product
https://www.tenda.com.cn/
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