CVE-2025-20312
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-24
Last updated on: 2025-09-26
Assigner: Cisco Systems, Inc.
Description
Description
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to improper error handling when parsing a specific SNMP request. An attacker could exploit this vulnerability by sending a specific SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv2c or earlier, the attacker must know a valid read-write or read-only SNMP community string for the affected system. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cisco | ios_xe | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-835 | The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the SNMP subsystem of Cisco IOS XE Software. It allows an authenticated remote attacker to cause a denial of service (DoS) by sending a specially crafted SNMP request that triggers improper error handling, causing the device to reload unexpectedly.
How can this vulnerability impact me? :
The impact of this vulnerability is a denial of service condition where the affected device reloads unexpectedly, potentially disrupting network operations and availability.
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