A vulnerability has been found in D-Link DIR-822A A_101. (CVE-2026-86510)
A remote vulnerability exists in the D-Link DIR-822A A_101 router affecting the tunnel_set_params function of the L2TP Control Message Parser. This flaw allows an attacker to perform an out-of-bounds write, potentially leading to full compromise of confidentiality, integrity, and availability. The vulnerability is publicly disclosed and exploitable remotely. No patch or remediation information is currently available.
AI Analysis
Technical Summary
CVE-2026-86510 is a high-severity vulnerability in the D-Link DIR-822A A_101 router. It affects the tunnel_set_params function within the L2TP Control Message Parser component, enabling an out-of-bounds write condition. This vulnerability can be triggered remotely without user interaction and has been publicly disclosed. The CVSS v3.1 score is 9.9, indicating critical impact on confidentiality, integrity, and availability. No vendor advisory or patch information is provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability can lead to complete compromise of the affected device, including unauthorized disclosure, modification, or destruction of data, and disruption of service. The vulnerability is remotely exploitable with low attack complexity and no user interaction required, making it highly dangerous.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting exposure of the affected device to untrusted networks and monitoring for unusual activity related to L2TP traffic.
A vulnerability has been found in D-Link DIR-822A A_101. (CVE-2026-86510)
Description
A remote vulnerability exists in the D-Link DIR-822A A_101 router affecting the tunnel_set_params function of the L2TP Control Message Parser. This flaw allows an attacker to perform an out-of-bounds write, potentially leading to full compromise of confidentiality, integrity, and availability. The vulnerability is publicly disclosed and exploitable remotely. No patch or remediation information is currently available.
CVSS v3.1
Score 9.9critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86510 is a high-severity vulnerability in the D-Link DIR-822A A_101 router. It affects the tunnel_set_params function within the L2TP Control Message Parser component, enabling an out-of-bounds write condition. This vulnerability can be triggered remotely without user interaction and has been publicly disclosed. The CVSS v3.1 score is 9.9, indicating critical impact on confidentiality, integrity, and availability. No vendor advisory or patch information is provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability can lead to complete compromise of the affected device, including unauthorized disclosure, modification, or destruction of data, and disruption of service. The vulnerability is remotely exploitable with low attack complexity and no user interaction required, making it highly dangerous.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting exposure of the affected device to untrusted networks and monitoring for unusual activity related to L2TP traffic.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-435m-cghg-23gf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86510"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a9f9105acd9273b49ff2531
Added to database: 09/08/2026, 04:37:25 UTC
Last enriched: 09/08/2026, 05:37:16 UTC
Last updated: 09/08/2026, 09:51:59 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.