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Fencer Intel
medium 5.4

CVE-2018-15395 json

Cisco Wireless LAN Controller Software Privilege Escalation Vulnerability

published 8y ago modified 4mo ago also EUVD-2018-7273

cvss
5.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.4 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
NVD 3.0 5.4 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • Cisco Cisco Wireless LAN Controller (WLC)

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.