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CVE-2026-100740: Out-of-bounds Write in D-Link DIR-895L

0
Critical
VulnerabilityCVE-2026-100740cvecve-2026-100740
Published: 09/27/2026 (09/27/2026, 00:45:14 UTC)
Source: CVE Database V5
Vendor/Project: D-Link
Product: DIR-895L

Description

A vulnerability was detected in D-Link DIR-895L A1_102b07. Impacted is the function tunnel_set_params of the file tunnel.c of the component L2TP Control Channel Parser. Performing a manipulation results in out-of-bounds write. The attack may be initiated remotely. The exploit is now public and may be used.

CVSS v4.0

Score 9.4critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

Affected software

D-Link

DIR-895L

CPE configurations
cpe:2.3:h:d-link:dir-895l:*:*:*:*:*:*:*:*

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/27/2026, 01:02:40 UTC

Technical Analysis

This vulnerability involves an out-of-bounds write in the tunnel_set_params function within tunnel.c of the L2TP Control Channel Parser on the D-Link DIR-895L device. The flaw allows remote attackers to manipulate parameters leading to memory corruption. The vulnerability has a CVSS 4.0 score of 9.4, indicating critical severity. Exploit code is publicly available, but no vendor advisory or patch information is provided in the input data.

Potential Impact

Successful exploitation can lead to memory corruption via out-of-bounds write, potentially allowing remote code execution or denial of service. The vulnerability is remotely exploitable without user interaction and has high impact on confidentiality, integrity, and availability as indicated by the CVSS vector. Public exploit availability increases the likelihood of attacks.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor vendor communications for updates. No vendor advisory or patch information is provided in the current data.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-09-26T09:19:26.589Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ab867d7f7a7c54106f60b24

Added to database: 09/27/2026, 00:48:23 UTC

Last enriched: 09/27/2026, 01:02:40 UTC

Last updated: 09/27/2026, 02:57:38 UTC

Views: 23

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