CVE-2026-1637

EUVD-2026-5114
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
VulDBCNA
8.8 HIGH
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 7%
Affected Products (NVD)
VendorProductVersion
tendaac21_firmware
16.03.08.16
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/LX-LX88/cve/issues/25
https://vuldb.com/?ctiid.343416
https://vuldb.com/?id.343416
https://vuldb.com/?submit.740865
https://www.tenda.com.cn/
https://github.com/LX-LX88/cve/issues/25