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CRITICAL

CVE-2020-13394

CVSS v3

9.8

CRITICAL

EPSS Score

1.1 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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/SetNetControlList list parameter 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.

Technical details

Published
2020-05-22

Frequently asked questions

What is CVE-2020-13394?

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/SetNetControlList list parameter 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.

Is CVE-2020-13394 actively exploited?

Active exploitation of CVE-2020-13394 has not been confirmed. The EPSS score is 1.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-13394?

CVE-2020-13394 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-13394 affecting your environment?

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