D-Link DIR-895L L2TP Control Channel tunnel.c tunnel_set_params out-of-bounds write (CVE-2026-100740) | HOL Guard CVE

Critical · CVSS 9.4CVE-2026-100740

D-Link DIR-895L L2TP Control Channel tunnel.c tunnel_set_params out-of-bounds write

Answer in brief

CVE-2026-100740 records a Critical severity (CVSS 9.4) vulnerability in D-Link DIR-895L L2TP Control Channel tunnel.c tunnel_set_params out-of-bounds write. The current sources do not mark it as known exploited. The current feed maps D-Link/DIR-895L (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 27, 2026Updated Sep 27, 2026Source checked Sep 27, 2026First seen by HOL Sep 27, 2026Material review Sep 27, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps D-Link/DIR-895L (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
D-Link/DIR-895Lgeneric	A1_102b07	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for D-Link/DIR-895L.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 27, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.