CVE-2026-20081
Cisco Unity Connection Arbitrary File Download 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.
INFO
Published Date :
April 15, 2026, 5:17 p.m.
Last Modified :
April 28, 2026, 4:13 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Cisco Unity Connection to the latest available version.
- Apply all relevant security patches from Cisco.
- Review system configurations for proper input sanitization.
- Restrict administrative access to authorized personnel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20081.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-file-download-RmKEVWPx | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20081 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20081
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20081 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20081 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:cisco:unity_connection:14.0:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su3:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su2:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su1:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su3a:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su4:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:14su5:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:15.0:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:15su1:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:15su2:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:15su3:*:*:*:*:*:*:* *cpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:* versions up to (including) 12.5 Added Reference Type Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-file-download-RmKEVWPx Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 15, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-23 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-file-download-RmKEVWPx