CVE-2015-6311 — Cisco Wireless LAN Controller (WLC) devices with software 7.0(240.0), 7.3(101.0), and 7.4(1.19) allow remote attackers to cause a denial of service (device outage) by sending malformed 802.11i management data to a managed access point, aka Bug ID CSCub65236

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MEDIUM

Cisco Wireless LAN Controller (WLC) devices with software 7.0(240.0), 7.3(101.0), and 7.4(1.19) allow remote attackers to cause a denial of service (device outage) by sending malformed 802.11i management data to a managed access point, aka Bug ID CSCub65236

Published Oct 8, 2015

6.1

MEDIUM

CVSS 2.0

EPSS 0.77%

Description

Cisco Wireless LAN Controller (WLC) devices with software 7.0(240.0), 7.3(101.0), and 7.4(1.19) allow remote attackers to cause a denial of service (device outage) by sending malformed 802.11i management data to a managed access point, aka Bug ID CSCub65236.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.77% 0.00772

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00772

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.77% (0.00772)	54.03th	v5 (v2026.06.15)
Jun 15, 2026	0.77% (0.00772)	50.69th	v5 (v2026.06.15)
Mar 17, 2025	0.68% (0.00679)	69.86th	v4 (v2025.03.14)
Dec 12, 2024	0.11% (0.00112)	46.23th	v3 (v2023.03.01)
Jun 26, 2024	0.11% (0.00112)	44.86th	v3 (v2023.03.01)
Mar 7, 2023	0.11% (0.00112)	42.84th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-399

References (2)

http://tools.cisco.com/security/center/viewAlert.x?alertId=41249
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1033731
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/viewAlert.x?alertId=41249		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1033731		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Oct 8, 2015

Updated Aug 6, 2024

Reserved Aug 17, 2015

Link CVE-2015-6311

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-6311

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-6311