Is CVE-2023-43869 actively exploited?

No active exploitation of CVE-2023-43869 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-43869 be exploited remotely?

Yes. CVE-2023-43869 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-43869?

CVE-2023-43869 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-43869

CRITICAL

CVE-2023-43869

CWE-787Published: September 28, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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

NVD Source

Risk Analysis

D-Link DIR-619L firmware is vulnerable to a buffer overflow in the formSetWAN_Wizard56 function. This critical flaw could allow remote attackers to compromise the device, though no active exploitation is currently reported.

No public exploit is known, but the vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Update the D-Link DIR-619L firmware to the latest available version. Disable unnecessary remote management features to reduce the attack surface.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-43869 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.