CVE-2026-20078— Cisco Unity Connection Arbitrary File Download Vulnerability
Quick assessment
Affected
Cisco Cisco Unity Connection
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 Unity Connection（UC）是美国思科（Cisco）公司的一套语音留言平台。该平台可利用语音命令，以免提方式拨打电话或收听留言。 Cisco Unity Connection存在安全漏洞，该漏洞源于基于Web的管理界面用户输入清理不当，可能导致经过身份验证的远程攻击者下载任意文件。
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I. Basic Information for CVE-2026-20078
Vulnerability Information
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Vulnerability Title
Cisco Unity Connection Arbitrary File Download Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials.
These vulnerabilities are due to improper sanitization of user input to the web-based management interface. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request. A successful exploit could allow the attacker to download arbitrary files from an affected system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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 Unity Connection（UC） 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unity Connection（UC）是美国思科（Cisco）公司的一套语音留言平台。该平台可利用语音命令，以免提方式拨打电话或收听留言。 Cisco Unity Connection存在安全漏洞，该漏洞源于基于Web的管理界面用户输入清理不当，可能导致经过身份验证的远程攻击者下载任意文件。
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 Unity Connection | 12.5(1) | - |
|
II. Public POCs for CVE-2026-20078
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-04-15 · 15 CVEs total
| CVE-2026-20147 | 9.9 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20186 | 9.9 CRITICAL | Cisco Identity Services Engine Multiple Authenticated Remote Code Execution Vulnerability |
| CVE-2026-20180 | 9.9 CRITICAL | Cisco Identity Services Engine Multiple Remote Code Execution Vulnerability |
| CVE-2026-20184 | 9.8 CRITICAL | Cisco Webex Meetings Certificate Validation Vulnerability |
| CVE-2026-20081 | 6.5 MEDIUM | Cisco Unity Connection Arbitrary File Download Vulnerability |
| CVE-2026-20170 | 6.1 MEDIUM | Cisco Webex Contact Center 安全漏洞 |
| CVE-2026-20059 | 6.1 MEDIUM | Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability |
| CVE-2026-20136 | 6.0 MEDIUM | Cisco Identity Services Engine Authenticated Privilege Escalation Vulnerability |
| CVE-2026-20161 | 5.5 MEDIUM | Cisco ThousandEyes Enterprise Agent Arbitrary File Overwrite Vulnerability |
| CVE-2026-20152 | 5.3 MEDIUM | Cisco Secure Web Appliance Authentication Service Traffic Bypass Vulnerability |
| CVE-2026-20148 | 4.9 MEDIUM | Cisco Identity Services Engine Path Traversal Vulnerability |
| CVE-2026-20132 | 4.8 MEDIUM | Cisco Identity Services Engine Multiple Cross-Site Scripting Vulnerabilities |
| CVE-2026-20060 | 4.7 MEDIUM | Cisco Unity Connection Open Redirect Vulnerability |
| CVE-2026-20061 | 4.3 MEDIUM | Cisco Unity Connection SQL Injection Vulnerability |
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V. Comments for CVE-2026-20078
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