CVE-2025-20393

KEV
Published: Dic 17, 2025 Last Modified: Gen 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 10,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root privileges.

This vulnerability is due to insufficient validation of HTTP requests by the Spam Quarantine feature. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0644
Percentile
0,9th
Updated

EPSS Score Trend (Last 39 Days)

20

Improper Input Validation

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality Integrity
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Read Memory Read Files Or Directories Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
From 15.5 (inclusive)
To 15.5.4-007 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
From 16.0 (inclusive)
To 16.0.4-016 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
To 15.0.2-007 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
From 15.5 (inclusive)
To 15.5.4-012 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
From 16.0 (inclusive)
To 16.0.4-010 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Asyncos by Cisco

Product Information
Vendor Cisco
Product Asyncos
Version Range Affected
To 15.0.5-016 (exclusive)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025…
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…