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Vulnerability record · CVE-2023-43869 · published 28 September 2023

CVE-2023-43869: Dlink dir-619l firmware out-of-bounds write vulnerability

Dlink · Dir 619l Firmware

D-Link DIR-619L B1 2.02 is vulnerable to Buffer Overflow via formSetWAN_Wizard56 function.

9.8 CVSS 3.1 Critical EPSS 0.95% · top 40.2% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
0.95%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-619L B1 2.02 is vulnerable to Buffer Overflow via formSetWAN_Wizard56 function.

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/YTrick/vuln/blob/main/DIR-619L%20Buffer%20Overflow_1.md ExploitThird Party Advisory
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://github.com/YTrick/vuln/blob/main/DIR-619L%20Buffer%20Overflow_1.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.

9.8CVE-2014-8361Realtek SDK miniigd SOAP service remote code executionThe miniigd SOAP service in the Realtek SDK fails to properly validate input in a NewInternalClient request, allowing remote code execution. The flaw…KEVEPSS 100%analysed9.8CVE-2020-19319Dlink dir-619l firmware classic buffer overflow vulnerabilityBuffer overflow vulnerability in DLINK 619L version B 2.06beta via the FILECODE parameter on login.EPSS 0.92%9.8CVE-2020-19320Dlink dir-619l firmware classic buffer overflow vulnerabilityBuffer overflow vulnerability in DLINK 619L version B 2.06beta via the curTime parameter on login.EPSS 1.1%9.8CVE-2023-37791Dlink dir-619l firmware out-of-bounds write vulnerabilityD-Link DIR-619L v2.04(TW) was discovered to contain a stack overflow via the curTime parameter at /goform/formLogin.EPSS 13%8.7CVE-2025-4452Dlink dir-619l firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DIR-619L 2.04B04 and classified as critical. Affected by this issue is the function formSetWizard2. The manipulat…EPSS 2.9%8.7CVE-2025-4448Dlink dir-619l firmware memory buffer overflow vulnerabilityA vulnerability classified as critical was found in D-Link DIR-619L 2.04B04. This vulnerability affects the function formEasySetupWizard. The manipul…EPSS 2.9%8.7CVE-2025-4449Dlink dir-619l firmware memory buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in D-Link DIR-619L 2.04B04. This issue affects the function formEasySetupWizard3. T…EPSS 2.9%8.7CVE-2025-4450Dlink dir-619l firmware memory buffer overflow vulnerabilityA vulnerability, which was classified as critical, was found in D-Link DIR-619L 2.04B04. Affected is the function formSetEasy_Wizard. The manipulatio…EPSS 2.9%

Source: NIST National Vulnerability Database (record CVE-2023-43869), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.