CVE-2015-6277

The ARP implementation in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 5.2(1)SV3(1.4), Nexus 3000 devices 7.3(0)ZD(0.47), Nexus 4000 devices 4.1(2)E1, Nexus 9000 devices 7.3(0)ZD(0.61), and MDS 9000 devices 7.0(0)HSK(0.353) and SAN-OS NX-OS on MDS 9000 devices 7.0(0)HSK(0.353) allows remote attackers to cause a denial of service (ARP process restart) via crafted packet-header fields, aka Bug ID CSCut25292.

Published: 2015-09-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-6277 is rated Moderate Risk (43.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.88%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-6277

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.40% 0.88% +0.48%
2 2025-03-30 0.30% 0.40% +0.10%
3 2025-03-29 — 0.30% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-6277

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 2.0 MEDIUM
AV:A/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 6.5 6.9 [email protected]

Weakness enumeration for CVE-2015-6277

Affected software / configurations for CVE-2015-6277

Vendor Product Version Raw CPE
cisco nx-os 7.3\(0\)zd\(0.47\) cpe:2.3:o:cisco:nx-os:7.3\(0\)zd\(0.47\):*:*:*:*:*:*:*
cisco nx-os 4.1\(2\)e1 cpe:2.3:o:cisco:nx-os:4.1\(2\)e1:*:*:*:*:*:*:*
cisco nx-os 7.0\(0\)hsk\(0.353\) cpe:2.3:o:cisco:nx-os:7.0\(0\)hsk\(0.353\):*:*:*:*:*:*:*
cisco san-os 7.0\(0\)hsk\(0.353\) cpe:2.3:o:cisco:san-os:7.0\(0\)hsk\(0.353\):*:*:*:*:*:*:*
cisco mds_9000 — cpe:2.3:h:cisco:mds_9000:-:*:*:*:*:*:*:*
cisco nx-os 7.3\(0\)zd\(0.61\) cpe:2.3:o:cisco:nx-os:7.3\(0\)zd\(0.61\):*:*:*:*:*:*:*
cisco 1000v 5.2\(1\)sv3\(1.4\) cpe:2.3:a:cisco:1000v:5.2\(1\)sv3\(1.4\):-:*:*:*:vmware_vsphere:*:*

References for CVE-2015-6277

cvelogic Threat Intelligence