Exploited Vulnerabilities DailyCVE-2025-20352: Cisco IOS and IOS XE
EPSS39.4%No. 943 of 1739 in KEV
CVE year2025listed the same year
Same vendor in KEV100
Same product4
| Field | Value |
|---|---|
| Vendor | Cisco |
| Product | IOS and IOS XE |
| Name | Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability |
| Added to KEV | 2025-09-29 |
| US federal due date | 2025-10-20 |
| Ransomware use | Unknown |
| CWE | CWE-121 |
CISA 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.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2023-20109 | Cisco IOS and IOS XE | 2023-10-10 | 2.4% | Unknown |
| CVE-2017-3881 | Cisco IOS and IOS XE | 2022-03-25 | 98.9% | Unknown |
| CVE-2018-0171 | Cisco IOS and IOS XE | 2021-11-03 | 99.4% | Unknown |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Cisco IOS and IOS XE vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2025-09-29.