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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://tzh00203.notion.site/D-Link-DIR-822A-L2TP-Host-Name-AVP-Out-of-Bounds-W…
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-86510
cna@vuldb.com
https://vuldb.com/submit/906300
cna@vuldb.com
https://vuldb.com/vuln/399663
cna@vuldb.com
https://vuldb.com/vuln/399663/cti
cna@vuldb.com
https://www.dlink.com/
cna@vuldb.com