CVE-2025-14656 | THREATINT

Description

A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing 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 exploited.

PUBLISHED Reserved 2025-12-13 | Published 2025-12-14 | Updated 2025-12-15 | Assigner VulDB

HIGH: 8.7CVSS: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

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

16.03.08.12

affected

Timeline

2025-12-13:	Advisory disclosed
2025-12-13:	VulDB entry created
2025-12-13:	VulDB entry last update

Credits

jiahui2888 (VulDB User) reporter

References

vuldb.com/?id.336389 (VDB-336389 | Tenda AC20 openSchedWifi httpd buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.336389 (VDB-336389 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.712917 (Submit #712917 | Tenda AC20 V16.03.08.12 Buffer Overflow) third-party-advisory

github.com/...2/blob/main/Tenda/VULN14/AC20_openSchedWifi.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2025-14656)

nvd.nist.gov (CVE-2025-14656)

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