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High severity · published Apr 30, 2026
CVE-2026-7470
Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
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)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
4G
4G300 · Tenda
US_4G300V1.0Mt_V1.01.42_CN_TDC01 · source: vendor
4F
4g300 Firmware · Tenda
1.01.42_cn_tdc01 · source: NVD
Affected product
4G
4G300
Tenda
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7470
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7470
Broken Link
https://github.com/Axelioc/CVE/blob/main/Tenda/US_4G300/sub_427C3C/sub_427C3C.md
Third Party Advisory
https://vuldb.com/submit/804269
Third Party Advisory
https://vuldb.com/vuln/360206
Permissions Required
https://vuldb.com/vuln/360206/cti
Product
https://www.tenda.com.cn/
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