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Vulnerability record · CVE-2020-21016 · published 31 October 2022

CVE-2020-21016: Dlink dir-846 firmware code injection vulnerability

Dlink · Dir 846 Firmware

D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary code as root via HNAP1/control/SetGuestWLanSettings.php.

9.8 CVSS 3.1 Critical EPSS 2.2% · top 18.4% CWE-94 · Code injection
9.8CVSS 3.1 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary code as root via HNAP1/control/SetGuestWLanSettings.php.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/dahua966/Routers-vuls/blob/master/DIR-846/GuestWLanSetting_RCE.md ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://github.com/dahua966/Routers-vuls/blob/master/DIR-846/GuestWLanSetting_RCE.md ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2022-46642Dlink dir-846 firmware command injection vulnerabilityD-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the auto_upgrade_hour parameter in the SetAutoUpgradeInfo …EPSS 3.1%9.9CVE-2022-46641Dlink dir-846 firmware command injection vulnerabilityD-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the lan(0)_dhcps_staticlist parameter in the SetIpMacBindS…EPSS 3.1%9.8CVE-2023-33735Dlink dir-846 firmware vulnerabilityD-Link DIR-846 v1.00A52 was discovered to contain a remote command execution (RCE) vulnerability via the tomography_ping_address parameter in the /HN…EPSS 33%9.8CVE-2021-46315Dlink dir-846 firmware os command injection vulnerabilityRemote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enF…EPSS 6.6%9.8CVE-2021-46319Dlink dir-846 firmware os command injection vulnerabilityRemote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users c…EPSS 6.6%9.8CVE-2021-46314Dlink dir-846 firmware os command injection vulnerabilityA Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetNetworkTomographySettings.php of D-Link Router DIR-846 DIR846A1_FW100A43.bi…EPSS 33%9.8CVE-2020-27600Dlink dir-846 firmware os command injection vulnerabilityHNAP1/control/SetMasterWLanSettings.php in D-Link D-Link Router DIR-846 DIR-846 A1_100.26 allows remote attackers to execute arbitrary commands via s…EPSS 14%9.8CVE-2019-17509Dlink dir-846 firmware os command injection vulnerabilityD-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary OS commands as root by leveraging admin access and sending a …EPSS 3.5%

Source: NIST National Vulnerability Database (record CVE-2020-21016), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.