CISA KEV速報 — 2026-10-20に6件追加

CISA（米サイバーセキュリティ・インフラセキュリティ庁）のKnown Exploited Vulnerabilities（KEV）カタログに、2026-10-20付けで6件のCVEが新規追加された。KEVは実際の悪用が確認された脆弱性のみを掲載するリストであり、追加された時点で攻撃者による悪用が現に進行している可能性が高い。

CVE-2026-96654 — Plex Media Server

脆弱性名: Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability

Plex Media Server contains an improper neutralization of encoded URI schemes in a web page vulnerability that could allow an attacker to call other plugins' functions and supply their own parameters. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96655, and CVE-2026-96656.

CVE-2026-96656 — Plex Media Server

脆弱性名: Plex Media Server External Control of File Name or Path Vulnerability

Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on load. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96655.

CVE-2026-106931 — EG Secure Solutions SiteGuard Server Edition

脆弱性名: EG Secure Solutions SiteGuard Server Edition OS Command Injection Vulnerability

EG Secure Solutions SiteGuard Server Edition contains an OS command injection vulnerability which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.

CVE-2026-110936 — Siemens Software Center

脆弱性名: Siemens Software Center Uncontrolled Search Path Element Vulnerability

Siemens Software Center contains an uncontrolled search path element vulnerability that could allow an authenticated local attacker to place a specially crafted DLL in a directory that the application searches, leading to arbitrary code execution with the privileges of the affected application.

CVE-2026-96655 — Plex Media Server

脆弱性名: Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability

Plex Media Server contains a server-side request forgery (SSRF) vulnerability that could allow an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96656.

CVE-2026-96652 — Plex Media Server

脆弱性名: Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability

Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination. This vulnerability can be chained with CVE-2026-96654, CVE-2026-96655, and CVE-2026-96656.

※本記事はCISA KEVの公開データをもとに機械的に生成している。対応要否は各組織の環境に応じて判断すること。