CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Oct 20, 2025
Description
Cisco IOS and IOS XE contains a stack-based buffer overflow vulnerability in the Simple Network Management Protocol (SNMP) subsystem that could allow for denial of service or remote code execution. A successful exploit could allow a low-privileged attacker to cause the affected system to reload, resulting in a DoS condition, or allow a high-privileged attacker to execute arbitrary code as the root user and obtain full control of the affected system.
EPSS — Exploit Probability
Higher than 83.5% of all CVEs
Required Action
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-x4LPhte ; https://nvd.nist.gov/vuln/detail/CVE-2025-20352
Risk Assessment
ELEVATEDDetails
- Severity
- High
- EPSS
- 2.0%
- CISA KEV
- Yes
- Ransomware
- Unknown
- Articles
- 0
Timeline
Published
Sep 29, 2025
Added to KEV
Sep 29, 2025
Remediation Due
Oct 20, 2025