CVE-2015-6366 — Cisco IOS 15.2(04)M6 and 15.4(03)S lets physical-interface ACLs supersede tunnel-interface ACLs, which allows remote attackers to bypass intended network-traffic restrictions in opportunistic circumstances by using a tunnel, aka Bug ID CSCur01042

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MEDIUM

Cisco IOS 15.2(04)M6 and 15.4(03)S lets physical-interface ACLs supersede tunnel-interface ACLs, which allows remote attackers to bypass intended network-traffic restrictions in opportunistic circumstances by using a tunnel, aka Bug ID CSCur01042

Published Nov 13, 2015

5.0

MEDIUM

CVSS 2.0

EPSS 1.64%

Description

Cisco IOS 15.2(04)M6 and 15.4(03)S lets physical-interface ACLs supersede tunnel-interface ACLs, which allows remote attackers to bypass intended network-traffic restrictions in opportunistic circumstances by using a tunnel, aka Bug ID CSCur01042.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.64% 0.01643

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

EPSS probability 0.01643

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	1.64% (0.01643)	75.56th	v5 (v2026.06.15)
Jun 15, 2026	1.64% (0.01643)	73.26th	v5 (v2026.06.15)
Mar 17, 2025	0.40% (0.00399)	58.53th	v4 (v2025.03.14)
Dec 12, 2024	0.14% (0.00138)	50.92th	v3 (v2023.03.01)
Jun 14, 2024	0.14% (0.00138)	49.57th	v3 (v2023.03.01)
Mar 7, 2023	0.14% (0.00138)	47.56th	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-284

References (2)

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151112-ios2
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1034141
vdb-entryx_refsource_SECTRACK

Link	Providers	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151112-ios2		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1034141		vdb-entryx_refsource_SECTRACK

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Nov 13, 2015

Updated Aug 6, 2024

Reserved Aug 17, 2015

Link CVE-2015-6366

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-6366

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-6366