CVE-2026-20045— Cisco Unified Communications Products Remote Code Execution Vulnerability
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I. Basic Information for CVE-2026-20045
Vulnerability Information
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Vulnerability Title
Cisco Unified Communications Products Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unity Connection, and Cisco Webex Calling Dedicated Instance could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unified CM等都是美国思科（Cisco）公司的产品。Cisco Unified CM是一个消息综合管理系统。Cisco Unified CM SME是一个分布式协作网络枢纽。Cisco Unified CM IM&P是一个即时消息处理组件。 Cisco多款产品存在安全漏洞，该漏洞源于对HTTP请求中用户输入验证不当，可能导致未经验证的远程攻击者执行任意命令并提升权限至root。以下产品受到影响：Cisco Unified Communications Manager、Cisco Uni
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Unified Communications Manager | 12.5(1)SU2 | - | |
| Cisco | Cisco Unified Communications Manager IM and Presence Service | 12.5(1) | - | |
| Cisco | Cisco Unity Connection | 12.5(1) | - |
II. Public POCs for CVE-2026-20045
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2026-20045 | https://github.com/dkstar11q/Ashwesker-CVE-2026-20045 | POC Details |
| 2 | CVE-2026-20045 | https://github.com/zaryouhashraf/CVE-2026-20045 | POC Details |
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Cisco · 2026-01-21 · 5 CVEs total
| CVE-2026-20092 | 6.0 MEDIUM | Cisco Intersight Virtual Appliance Privilege Escalation Vulnerability |
| CVE-2026-20080 | 5.3 MEDIUM | Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability |
| CVE-2026-20055 | 4.8 MEDIUM | Cisco Packaged Contact Center Enterprise & Cisco Unified Contact Center Enterprise Cross-S |
| CVE-2026-20109 | 4.8 MEDIUM | Cisco Packaged Contact Center Enterprise and Cisco Unified Contact Center Enterprise Cross |
IV. Related Vulnerabilities
Same product: Cisco Unified Communications Manager
- CVE-2025-20361
Cisco Unified Communications Manager Stored Cross-Site Scrip - CVE-2025-20326
Cisco Unified Communications Manager Cross-Site Request Forg - CVE-2025-20309
Cisco Unified Communications Manager Static SSH Credentials - CVE-2020-3420
Cisco Unified Communications Manager Stored Cross-Site Scrip - CVE-2024-20511
Cisco Unified Communications Manager Cross-Site Scripting Vu
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-94
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V. Comments for CVE-2026-20045
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