What is CVE-2018-0248?

CVE-2018-0248 is a medium-severity vulnerability in Cisco Wireless Lan Controller (Wlc), classified under Improper Input Validation. CVSS score: 6.8/10. Published 2019-04-17.

How severe is CVE-2018-0248?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Improper input validation in Cisco Wireless Lan Controller (Wlc)

CVE-2018-0248

A vulnerability in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an aUTHENTICated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid administrator credentials on the device. This vulnerability is due to incomplete input validation for unexpected configuration options that the attacker could submit while accessing the GUI configuration menus. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted user input when using the administrative GUI configuration feature. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Software versions prior to 8.3.150.0, 8.5.140.0, 8.8.111.0 are affected by this vulnerability.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.4th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Cisco Wireless Lan Controller (Wlc) — versions unspecified
Cisco Wireless Lan Controller Software

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417… (vendor-advisory, Vendor Advisory)
www.securityfocus.com/bid/108009 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-0248?: CVE-2018-0248 is a medium-severity vulnerability in Cisco Wireless Lan Controller (Wlc), classified under Improper Input Validation. CVSS score: 6.8/10. Published 2019-04-17.
How severe is CVE-2018-0248?: Medium severity. CVSS v3 base score is 6.8 out of 10.