How severe is CVE-2015-6359?

CVE-2015-6359 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2015-6359 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6359?

CVE-2015-6359 primarily affects Cisco Ios. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6359?

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

When was CVE-2015-6359 published?

CVE-2015-6359 was published on 2015-12-15 and last updated on 2026-06-17.

CVE-2015-6359

CVE-2015-6359 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 6.1. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Ios
Published: 2015-12-15
Last modified: 2026-06-17

Description

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS 15.3(3)S0.1 on ASR devices mishandles internal tables, which allows remote attackers to cause a denial of service (memory consumption or device crash) via a flood of crafted ND messages, aka Bug ID CSCup28217.

Frequently asked questions

What is CVE-2015-6359?: The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS 15.3(3)S0.1 on ASR devices mishandles internal tables, which allows remote attackers to cause a denial of service (memory consumption or device crash) via a flood of crafted ND messages, aka Bug ID CSCup28217.
How severe is CVE-2015-6359?: CVE-2015-6359 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2015-6359 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6359?: CVE-2015-6359 primarily affects Cisco Ios. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6359?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6359 published?: CVE-2015-6359 was published on 2015-12-15 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:cisco:ios:15.2\(4\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(4\)pi:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(4\)st:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(5\)st:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s0.1:*:*:*:*:*:*:*

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