CVE-2025-20169
Last modified
CVE-2025-20169 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper error handling when parsing SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper error handling when parsing SNMP requests. An attacker could exploit this vulnerability by sending a crafted 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 SNMP v2c 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 SNMP v3, the attacker must have valid SNMP user credentials for the affected system.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | 12.2\(1\) |
| Cisco | Ios | 12.2\(1\)dx |
| Cisco | Ios | 12.2\(1\)dx1 |
| Cisco | Ios | 12.2\(1\)m0 |
| Cisco | Ios | 12.2\(1\)mb1 |
| Cisco | Ios | 12.2\(1\)xd |
| Cisco | Ios | 12.2\(1\)xd1 |
| Cisco | Ios | 12.2\(1\)xd2 |
| Cisco | Ios | 12.2\(1\)xd3 |
| Cisco | Ios | 12.2\(1\)xd4 |
| Cisco | Ios | 12.2\(1\)xe |
| Cisco | Ios | 12.2\(1\)xe1 |
| Cisco | Ios | 12.2\(1\)xe2 |
| Cisco | Ios | 12.2\(1\)xf |
| Cisco | Ios | 12.2\(1\)xf1 |
| Cisco | Ios | 12.2\(1\)xs |
| Cisco | Ios | 12.2\(1\)xs1a |
| Cisco | Ios | 12.2\(1\)xs2 |
| Cisco | Ios | 12.2\(1a\) |
| Cisco | Ios | 12.2\(1a\)xc |
| Cisco | Ios | 12.2\(1a\)xc1 |
| Cisco | Ios | 12.2\(1a\)xc2 |
| Cisco | Ios | 12.2\(1a\)xc3 |
| Cisco | Ios | 12.2\(1b\) |
| Cisco | Ios | 12.2\(1b\)da |
| Cisco | Ios | 12.2\(1b\)da1 |
| Cisco | Ios | 12.2\(1c\) |
| Cisco | Ios | 12.2\(1d\) |
| Cisco | Ios | 12.2\(2\)b |
| Cisco | Ios | 12.2\(2\)b1 |
| Cisco | Ios | 12.2\(2\)b2 |
| Cisco | Ios | 12.2\(2\)b3 |
| Cisco | Ios | 12.2\(2\)b4 |
| Cisco | Ios | 12.2\(2\)b5 |
| Cisco | Ios | 12.2\(2\)b6 |
| Cisco | Ios | 12.2\(2\)b7 |
| Cisco | Ios | 12.2\(2\)bx |
| Cisco | Ios | 12.2\(2\)bx1 |
| Cisco | Ios | 12.2\(2\)by |
| Cisco | Ios | 12.2\(2\)by1 |
| Cisco | Ios | 12.2\(2\)by2 |
| Cisco | Ios | 12.2\(2\)by3 |
| Cisco | Ios | 12.2\(2\)dd |
| Cisco | Ios | 12.2\(2\)dd1 |
| Cisco | Ios | 12.2\(2\)dd2 |
| Cisco | Ios | 12.2\(2\)dd3 |
| Cisco | Ios | 12.2\(2\)dd4 |
| Cisco | Ios | 12.2\(2\)dx3 |
| Cisco | Ios | 12.2\(2\)xa |
| Cisco | Ios | 12.2\(2\)xa1 |
Showing 50 of 3396 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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