D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow (CVE-2026-90693) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90693

D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow

Answer in brief

CVE-2026-90693 records a Unknown severity vulnerability in D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow. The current sources do not mark it as known exploited. The current feed maps D-Link/DIR-878 (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 14, 2026Updated Sep 14, 2026Source checked Sep 14, 2026First seen by HOL Sep 14, 2026Material review Sep 14, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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-878 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
D-Link/DIR-878generic	120B05	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for D-Link/DIR-878.
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 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 14, 2026

Sources and claim methodology

Upstream source description

A flaw has been found in D-Link DIR-878 120B05. This impacts the function SetWan3Settings of the component WAN Settings. This manipulation of the argument Primary/Secondary causes stack-based buffer overflow. Remote exploitation of the attack is possible.

Quoted source text, attributed separately from HOL analysis.