VulnerabilityAnalyzed

CVE-2025-12611

A vulnerability was identified in Tenda AC21 16.03.08.16.

HIGH 7.4EPSS 0.68%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

CVSS 4.0: 7.4 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.68% probability · 51th percentile
CISA KEV: Not listed
Weakness: CWE-119, CWE-120
Affected: tenda/ac21 firmware
Source: cna@vuldb.com

References

https://github.com/LX-LX88/cve/issues/10Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/?ctiid.330906Permissions Required, VDB Entry
https://vuldb.com/?id.330906Third Party Advisory, VDB Entry
https://vuldb.com/?submit.678491Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.