CISA ADP Vulnrichment

Answer in brief

CVE-2026-86530 records a High severity (CVSS 8.6) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps BUFFALO INC./WEX-G300 (generic), BUFFALO INC./WSR-300HP (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 28, 2026Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Sep 28, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.6
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.6. 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 BUFFALO INC./WEX-G300 (generic), BUFFALO INC./WSR-300HP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
BUFFALO INC./WEX-G300generic	>=0 <Ver.1.71	Ver.1.71
BUFFALO INC./WSR-300HPgeneric	>=0 <Ver.2.55	Ver.2.55

Recommended response

Check inventory. Check lockfiles and deployed manifests for BUFFALO INC./WEX-G300, BUFFALO INC./WSR-300HP.
Review the reported fix. Update BUFFALO INC./WEX-G300 to Ver.1.71; BUFFALO INC./WSR-300HP to Ver.2.55 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 28, 2026

Sources and claim methodology

Upstream source description

BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command.

Quoted source text, attributed separately from HOL analysis.