GHSA-fcv7-pchj-75c2 · 深刻度: high — A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified...
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (SSRF) attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to write files to the underlying operating system that could be used later to elevate to root. Note: Cisco has assigned this security advisory a Security Impact Rating (SIR) of Critical rather than High as the score indicates. The reason is that exploitation of this vulnerability could result in an attacker elevating privileges to root. Note: To exploit this vulnerability, the WebDialer service must be enabled. WebDialer is disabled by default.
総合評価: CVE-2026-20230 は在野悪用が確認された重大脅威(88.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 41.69%、99 パーセンタイル) 根拠: CISA KEV に登録(追加日 2026-06-25)。Cisco / Unified Communications Manager が対象で、弱点分類 CWE-918の悪用が確認されています。未認証でリモート管理権限を奪取されるリスクが極めて高い。 推奨対応: CISA の対応期限を過ぎています。緊急のパッチ適用を最優先に検討してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
: Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability · CISA KEV の詳細
: 2026-06-25
: 2026-06-28
: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-27 | 51.24% | 41.69% | -9.54% |
| 2 | 2026-06-26 | 34.16% | 51.24% | +17.08% |
| 3 | 2026-06-25 | — | 34.16% | — |
EPSS の全履歴 (全 7 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.6 | 3.1 | HIGH |
|
3.9 | 4.0 | [email protected] |
GHSA-fcv7-pchj-75c2 · 深刻度: high — A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified...
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| cisco | unified_communications_manager | >= 14.0, < 14su6 | cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:-:*:*:* |
| cisco | unified_communications_manager | >= 14.0, < 14su6 | cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:* |
| cisco | unified_communications_manager | >= 15.0, <= 15su4a | cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:-:*:*:* |
| cisco | unified_communications_manager | >= 15.0, <= 15su4a | cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:* |
| URL | タグ |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-ssrf-cXPnHcW | Vendor Advisory |
| https://denizhalil.com/2026/06/12/cve-2026-20230-cisco-unified-cm-ssrf/ | Exploit Third Party Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20230 | US Government Resource |