CVE-2022-20862— Cisco Unified Communications Manager Arbitrary File Read Vulnerability
Quick assessment
Affected
Cisco Cisco Unified Communications Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager存在安全漏洞，该漏洞源于在处理目录遍历序列时输入验证错误。攻击者利用该漏洞发送特制的HTTP请求并读取系统上的任意文件。
Possible ATT&CK Techniques 1 AI
T1083 · File and Directory Discovery
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I. Basic Information for CVE-2022-20862
Vulnerability Information
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Vulnerability Title
Cisco Unified Communications Manager Arbitrary File Read Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to access sensitive files on the operating system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Unified Communications Manager 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager存在安全漏洞，该漏洞源于在处理目录遍历序列时输入验证错误。攻击者利用该漏洞发送特制的HTTP请求并读取系统上的任意文件。
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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Unified Communications Manager | n/a | - |
|
II. Public POCs for CVE-2022-20862
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2022-20862 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-file-read-qgjhEc3A vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2022-07-06 · 10 CVEs total
| CVE-2022-20813 | 9.0 CRITICAL | Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities |
| CVE-2022-20812 | 9.0 CRITICAL | Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities |
| CVE-2022-20808 | 7.7 HIGH | Cisco Smart Software Manager On-Prem Denial of Service Vulnerability |
| CVE-2022-20859 | 6.5 MEDIUM | Cisco Unified Communications Products Access Control Vulnerability |
| CVE-2022-20791 | 6.5 MEDIUM | Cisco Unified Communications Products Arbitrary File Read Vulnerability |
| CVE-2022-20815 | 6.1 MEDIUM | Cisco Unified Communications Products Cross-Site Scripting Vulnerability |
| CVE-2022-20800 | 6.1 MEDIUM | Cisco Unified Communications Products Cross-Site Scripting Vulnerability |
| CVE-2022-20752 | 5.3 MEDIUM | Cisco Unified Communications Products Timing Attack Vulnerability |
| CVE-2022-20768 | 4.9 MEDIUM | Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulne |
IV. Related Vulnerabilities
Same product: Cisco Unified Communications Manager
-
CVE-2026-20230
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CVE-2026-20045
Cisco Unified Communications Products Remote Code Execution -
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
Same vendor: Cisco
-
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization B -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability
Same weakness: CWE-23
V. Comments for CVE-2022-20862
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