A vulnerability was determined in D-Link DIR-878 1.20B05. This impacts the function SetVLANSettings of the file prog.cgi of the component HNAP Handler. Executing a manipulation of the argument VID can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
D-link Subscribe
Dir-878 Subscribe

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Zimo-666/DIR-878-cves/tree/main/03-settriggeradic-vlan-stack-overflow cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-124561 cve-icon cve-icon
https://vuldb.com/submit/1035617 cve-icon cve-icon
https://vuldb.com/vuln/432893 cve-icon cve-icon
https://vuldb.com/vuln/432893/cti cve-icon cve-icon
https://www.dlink.com/ cve-icon cve-icon
History

Mon, 09 Nov 2026 03:30:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in D-Link DIR-878 1.20B05. This impacts the function SetVLANSettings of the file prog.cgi of the component HNAP Handler. Executing a manipulation of the argument VID can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.
Title D-Link DIR-878 HNAP prog.cgi SetVLANSettings stack-based overflow
First Time appeared D-link
D-link dir-878
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:h:d-link:dir-878:*:*:*:*:*:*:*:*
Vendors & Products D-link
D-link dir-878
References
Metrics cvssV2_0

{'score': 7.8, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-11-09T03:15:50.227Z

Reserved: 2026-11-08T14:46:56.088Z

Link: CVE-2026-124561

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-09T04:17:06.317

Modified: 2026-11-09T04:17:06.510

Link: CVE-2026-124561

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-09T04:30:05Z

Weaknesses