CVE-2023-44809: Dlink dir-820l firmware improper privilege management vulnerability

Dlink · Dir 820l Firmware

D-Link device DIR-820L 1.05B03 is vulnerable to Insecure Permissions.

9.8 CVSS 3.1 Critical EPSS 0.85% · top 43.5% CWE-269 · Improper privilege management

9.8CVSS 3.1 base score

0.85%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

D-Link device DIR-820L 1.05B03 is vulnerable to Insecure Permissions.

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.

Dir 820l Firmware Dlink

References

Link	Tags
https://github.com/Archerber/bug_submit/blob/main/D-Link/DIR-820l/bug1.md	ExploitThird Party Advisory
https://github.com/Archerber/bug_submit/blob/main/D-Link/DIR-820l/bug1.md	ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2023-25280D-Link DIR-820L ping.ccp OS Command InjectionThe D-Link DIR-820L router firmware (DIR820LA1_FW105B03) fails to sanitize the ping_addr parameter passed to ping.ccp, allowing OS command injection.…KEVEPSS 98%analysed16 Mar 2023 9.8CVE-2022-26258D-Link DIR-820L router OS command injection via HTTP POSTD-Link DIR-820L firmware 1.05B03 contains an OS command injection flaw reachable through an HTTP POST request to the set ccp handler, allowing remote…KEVEPSS 92%analysed28 Mar 2022 9.8CVE-2021-45382D-Link DIR series routers command injection in DDNS functionAn OS command injection flaw exists in the DDNS function of the ncc2 binary on multiple D-Link DIR router models (DIR-810L, DIR-820L/LW, DIR-826L, DI…KEVEPSS 98%analysed17 Feb 2022 9.8CVE-2015-1187D-Link and TRENDnet ping tool command injection allows remote code executionThe ping tool in multiple D-Link and TRENDnet router and access point firmware fails to properly authenticate or sanitize the ping_addr parameter pas…KEVEPSS 83%analysed21 Sep 2017 9.8CVE-2024-48150Dlink dir-820l firmware classic buffer overflow vulnerabilityD-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the sub_451208 function.EPSS 0.71%14 Oct 2024 9.8CVE-2023-44808Dlink dir-820l firmware out-of-bounds write vulnerabilityD-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the sub_4507CC function.EPSS 0.85%16 Oct 2023 9.8CVE-2023-44807Dlink dir-820l firmware out-of-bounds write vulnerabilityD-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the cancelPing function.EPSS 1.1%6 Oct 2023 9.8CVE-2023-25279Dlink dir-820l firmware os command injection vulnerabilityOS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a crafted payload.EPSS 31%13 Mar 2023

Source: NIST National Vulnerability Database (record CVE-2023-44809), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.