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No exploitation reported

CVE-2020-13393

No exploitation reported by the sources we read.

  • Published2020-05-22
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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/saveParentControlInfo deviceId and time 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.

Timeline

dates in UTC
  1. 2020-05-2217:15CVE publishedNVD

Versions per branch

NVD
Tendacn ac9 firmwareversion to verify
BranchAffectedFixed in
15.3= v15.03.05.19\(6318\)no fix published
15.3= v15.03.06.42_multino fix published
Tendacn ac15 firmwareversion to verify
BranchAffectedFixed in
15.3= v15.03.05.19_multi_td01no fix published
Tendacn ac18 firmwareversion to verify
BranchAffectedFixed in
15.3= v15.03.05.19\(6318\)no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-05-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-7q2h-j6h8-gpm7

Frequently asked questions

What is CVE-2020-13393?

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/saveParentControlInfo deviceId and time 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.

Is CVE-2020-13393 actively exploited?

Active exploitation of CVE-2020-13393 has not been confirmed. Its EPSS score was 3.3% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-13393?

CVE-2020-13393 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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