CVE-2025-20352

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2025-20352

Confirmed

Yes

2025-09-29 00:00 UTC

Timestamps

2025-09-29

2025-09-29

Scope

KEV entry: Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability | Affected: Cisco / IOS and IOS XE | 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. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-10-20 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-x4LPhte ; https://nvd.nist.gov/vuln/detail/CVE-2025-20352

References
  • {'id': 'CVE-2025-20352', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-20352'}

98a60129-0e90-474e-8f54-ef4edb549a9d

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:24 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-121"
  ],
  "date_added": "2025-09-29",
  "due_date": "2025-10-20",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "IOS and IOS XE",
  "vendorProject": "Cisco",
  "vulnerabilityName": "Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability"
}
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