TI-2022-21416 Aliases CVE-2022-43648 GHSA-p682-rxp7-r33h

Heap-based buffer overflow in D-Link DIR-3040

MEDIUM 42CWE-122Published 2023-03-29 · Updated 2025-02-12

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00911 60th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
D-Link	DIR-3040	1.20B03	—	No fix listed	CNA

DIR-3040 VendorD-Link Affected 1.20B03 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:dlink:dir-3040_firmware::::::::	up to 1.20b03	Vulnerable	D-Link Japan K.K.
cpe:2.3:h:dlink:dir-3040:-:::::::*	not specified by NVD	Running on	D-Link Japan K.K.

cpe:2.3:o:dlink:dir-3040_firmware:*:*:*:*:*:*:*:* Versions up to 1.20b03 Vulnerable ·D-Link Japan K.K.
cpe:2.3:h:dlink:dir-3040:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-43648
2026-10-03 Alias added: GHSA-p682-rxp7-r33h

References

Patch 1

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10322

Advisory 1

https://www.zerodayinitiative.com/advisories/ZDI-23-052/

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TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8

See all 979 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences