CVE-2022-43648

Name: CVE-2022-43648
Creator: NVD / NIST
Published: 2023-03-29T19:15:21.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2022-43648 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 1.20B03 routers. Authentication is not required to exploit this vulnerability. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 1.20B03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MiniDLNA service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the MiniDLNA service. Was ZDI-CAN-19910.

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

0.92%

55.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions
Dlink	Dir-3040 Firmware	<= 1.20b03

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10322Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-052/Third Party Advisory, VDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10322Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-052/Third Party Advisory, VDB Entry

Timeline

Published: Mar 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-43648?

How severe is CVE-2022-43648?

CVE-2022-43648 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2022-43648?

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-2022-43648?

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

Scan your code now

Source: NVD / NIST