TI-2022-21390 Aliases CVE-2022-43622 GHSA-94w7-67qp-92gp

Stack-based buffer overflow in D-Link DIR-1935

MEDIUM 42CWE-121Published 2023-03-29 · Updated 2025-02-18

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-121 and the CVSS impact.

Summary

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of Login requests to the web management portal. When parsing the HNAP_AUTH header, the process does not properly validate 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-16139.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00993 62nd 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-1935	1.03	—	No fix listed	CNA

DIR-1935 VendorD-Link Affected 1.03 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:dlink:dir-1935_firmware::::::::	up to 1.02	Vulnerable	D-Link Japan K.K.
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b1::::::	1.03 b1	Vulnerable	D-Link Japan K.K.
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b2::::::	1.03 b2	Vulnerable	D-Link Japan K.K.
cpe:2.3:h:dlink:dir-1935:-:::::::*	not specified by NVD	Running on	D-Link Japan K.K.

cpe:2.3:o:dlink:dir-1935_firmware:*:*:*:*:*:*:*:* Versions up to 1.02 Vulnerable ·D-Link Japan K.K.
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b1:*:*:*:*:*:* Versions 1.03 b1 Vulnerable ·D-Link Japan K.K.
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b2:*:*:*:*:*:* Versions 1.03 b2 Vulnerable ·D-Link Japan K.K.
cpe:2.3:h:dlink:dir-1935:-:*:*:*:*:*:*:* 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-2022-43622
2026-10-03 Alias added: GHSA-94w7-67qp-92gp

References

Patch 1

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310

Advisory 1

https://www.zerodayinitiative.com/advisories/ZDI-22-1491/

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TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
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See all 979 →

Sources

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