SB2025092462 - Authenticated code execution in Cisco IOS and IOS XE SNMP implementation
Published: September 24, 2025 Updated: September 25, 2025
Security Bulletin ID
SB2025092462
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2025-20352)
The vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to a boundary error within the SNMP subsystem. A remote privileged user can send specially crafted SNMP packets to the affected device, trigger a stack-based buffer overflow and execute arbitrary code with root privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.