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Vulnerability record · CVE-2021-46441 · published 27 April 2022

CVE-2021-46441: Dlink dir-825 firmware os command injection vulnerability

Dlink · Dir 825 Firmware

In the "webupg" binary of D-Link DIR-825 G1, because of the lack of parameter verification, attackers can use "cmd" parameters to execute arbitrary system commands after obtaining authorization.

8.8 CVSS 3.1 High EPSS 33% · top 1.7% CWE-78 · OS command injection
8.8CVSS 3.1 base score, v2 9.0
33%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

In the "webupg" binary of D-Link DIR-825 G1, because of the lack of parameter verification, attackers can use "cmd" parameters to execute arbitrary system commands after obtaining authorization.

CVSS:3.1/AV:N/AC:L/PR:L/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/tgp-top/D-Link-DIR-825 ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://github.com/tgp-top/D-Link-DIR-825 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.

9.8CVE-2019-16920D-Link router PingTest CGI command injection allows unauthenticated RCEMultiple D-Link router and powerline models expose a PingTest common gateway interface that passes arbitrary input into a system command without sani…KEVEPSS 100%analysed9.8CVE-2022-47035Dlink dir-825 firmware classic buffer overflow vulnerabilityBuffer Overflow Vulnerability in D-Link DIR-825 v1.33.0.44ebdd4-embedded and below allows attacker to execute arbitrary code via the GetConfig method…EPSS 1.2%9.8CVE-2021-46442D-Link DIR-825 webupg authentication bypass via autoupgrade.aspThe webupg binary in D-Link DIR-825 G1 firmware mishandles the autoupgrade.asp parameter, allowing authentication to be bypassed. An unauthenticated …EPSS 56%analysed8.9CVE-2025-7206Dlink dir-825 firmware memory buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in D-Link DIR-825 2.10. This issue affects the function sub_410DDC of the file swit…EPSS 18%8.8CVE-2020-10213Dlink dir-825 firmware os command injection vulnerabilityAn issue was discovered on D-Link DIR-825 Rev.B 2.10 devices. They allow remote attackers to execute arbitrary commands via the wps_sta_enrollee_pin …EPSS 5.0%8.8CVE-2020-10214Dlink dir-825 firmware out-of-bounds write vulnerabilityAn issue was discovered on D-Link DIR-825 Rev.B 2.10 devices. There is a stack-based buffer overflow in the httpd binary. It allows an authenticated …EPSS 18%8.8CVE-2020-10215Dlink dir-825 firmware os command injection vulnerabilityAn issue was discovered on D-Link DIR-825 Rev.B 2.10 devices. They allow remote attackers to execute arbitrary commands via the dns_query_name parame…EPSS 5.3%8.8CVE-2020-10216Dlink dir-825 firmware os command injection vulnerabilityAn issue was discovered on D-Link DIR-825 Rev.B 2.10 devices. They allow remote attackers to execute arbitrary commands via the date parameter in a s…EPSS 5.0%

Source: NIST National Vulnerability Database (record CVE-2021-46441), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.