CVE-2023-50209

Name: CVE-2023-50209
Creator: NVD / NIST
Published: 2024-05-03T03:16:07.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2023-50209 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. D-Link G416 cfgsave Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

D-Link G416 cfgsave Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21442.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.64%

45.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	G416 Firmware	< 1.09b01

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10367Mitigation, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1825/Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10367Mitigation, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1825/Third Party Advisory

Timeline

Published: May 3, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-50209?

How severe is CVE-2023-50209?

CVE-2023-50209 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50209?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50209?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST