How severe is CVE-2015-6415?

CVE-2015-6415 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2015-6415 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6415?

CVE-2015-6415 affects Cisco Unified Computing System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6415?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-6415 published?

CVE-2015-6415 was published on 2015-12-12 and last updated on 2026-06-17.

CVE-2015-6415

CVE-2015-6415 is a high-severity vulnerability in Cisco Unified Computing System with a CVSS 2.0 base score of 7.1. 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Unified Computing System
Published: 2015-12-12
Last modified: 2026-06-17

Description

Cisco Unified Computing System (UCS) 2.2(3f)A on Fabric Interconnect 6200 devices allows remote attackers to cause a denial of service (CPU consumption or device outage) via a SYN flood on the SSH port during the booting process, aka Bug ID CSCuu81757.

Frequently asked questions

What is CVE-2015-6415?: Cisco Unified Computing System (UCS) 2.2(3f)A on Fabric Interconnect 6200 devices allows remote attackers to cause a denial of service (CPU consumption or device outage) via a SYN flood on the SSH port during the booting process, aka Bug ID CSCuu81757.
How severe is CVE-2015-6415?: CVE-2015-6415 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2015-6415 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6415?: CVE-2015-6415 affects Cisco Unified Computing System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6415?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-6415 published?: CVE-2015-6415 was published on 2015-12-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:unified_computing_system:2.2\(3f\)a:*:*:*:*:*:*:*

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