CVE-2020-13389 - CVE House
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Status published Critical CVE-2020-13389

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9...

Vulnerability Description

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the /goform/openSchedWifi schedStartTime and schedEndTime parameters for a POST request, a value is directly used in a strcpy to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

ac6 firmware, ac9 firmware, ac15 firmware, ac18 firmware
Vulnerable Versions:
v15.03.05.19_multi_td01, v15.03.05.19\(6318\), v15.03.06.42_multi

Timeline

Official Publish: May 22nd, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.