Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability
Critical Listed in CISA KEV
Summary
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.
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- Cisco:IOS and IOS XE
Sources
- CISA KEV DATABASE
Original Links
- https://nvd.nist.gov/vuln/detail/CVE-2025-20352 advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog kev
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-x4LPhte reference
Timeline
- kev_added CISA KEV
- kev_ingest CISA KEV