CVE-2025-14656

Name: CVE-2025-14656
Creator: NVD / NIST
Published: 2025-12-14T11:15:40.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2025-14656 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

7.4/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.63%

45.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	Ac20 Firmware	16.03.08.12

References

https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN14/AC20_openSchedWifi.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.336389Permissions Required, VDB Entry
https://vuldb.com/?id.336389Third Party Advisory, VDB Entry
https://vuldb.com/?submit.712917Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product

Timeline

Published: Dec 14, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-14656?

How severe is CVE-2025-14656?

CVE-2025-14656 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2025-14656?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-14656?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST