How severe is CVE-2015-6366?

CVE-2015-6366 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6366?

CVE-2015-6366 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-6366 published?

CVE-2015-6366 was published on 2015-11-13 and last updated on 2026-06-17.

CVE-2015-6366

CVE-2015-6366 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Cisco Ios
Published: 2015-11-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-6366?: CVE-2015-6366 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6366?: CVE-2015-6366 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6366 published?: CVE-2015-6366 was published on 2015-11-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:cisco:ios:15.2\(4\)m6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)s:*:*:*:*:*:*:*

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