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CVE-2026-86510 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function tunnel_set_params of the component L2TP Control Message Parser. Such manipulation leads to out-of-bounds write. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://tzh00203.notion.site/D-Link-DIR-822A-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a80a7af5fdc1af3d5aa73	[email protected]
https://vuldb.com/cve/CVE-2026-86510	[email protected]	AdvisoryPermission Required
https://vuldb.com/submit/906300	[email protected]	Issue TrackingPermission Required
https://vuldb.com/vuln/399663	[email protected]	Content Wall
https://vuldb.com/vuln/399663/cti	[email protected]	Content Wall
https://www.dlink.com/	[email protected]	Vendor

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
D-Link DIR-822A	All versions
CPE cpe:2.3:h:dlink:dir-822:::::::: cpe:2.3:o:d-link:dir-822_firmware:::::::: cpe:2.3:h:d-link:dir-822:::::::: cpe:2.3:o:dlink:dir-822_firmware:::::::: cpe:2.3:o:dlink:dir-822-us_firmware:::::::: cpe:2.3:h:dlink:dir-822+:::::::: cpe:2.3:o:dlink:dir-822+_firmware:::::::: cpe:2.3:h:dlink:dir-822-us:::::::: Remediation No remediation found in references.

Product

Versions

D-Link DIR-822A

All versions

CPE

cpe:2.3:h:dlink:dir-822:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-822_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:d-link:dir-822:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-822_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-822-us_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-822+:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-822+_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-822-us:*:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 8, 2026	CVE Modified	CISA-ADP
Sep 8, 2026	New CVE Received	[email protected]