How severe is CVE-2014-3261?

CVE-2014-3261 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2014-3261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3261?

CVE-2014-3261 primarily affects Cisco Unified Computing System 6120xp Fabric Interconnect. In total, 75 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3261?

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-2014-3261 published?

CVE-2014-3261 was published on 2014-05-26 and last updated on 2026-06-17.

CVE-2014-3261

CVE-2014-3261 is a high-severity vulnerability in Cisco Unified Computing System 6120xp Fabric Interconnect with a CVSS 2.0 base score of 7.6. 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: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Unified Computing System 6120xp Fabric Interconnect
Published: 2014-05-26
Last modified: 2026-06-17

Description

Buffer overflow in the Smart Call Home implementation in Cisco NX-OS on Fabric Interconnects in Cisco Unified Computing System 1.4 before 1.4(1i), NX-OS 5.0 before 5.0(3)U2(2) on Nexus 3000 devices, NX-OS 4.1 before 4.1(2)E1(1l) on Nexus 4000 devices, NX-OS 5.x before 5.1(3)N1(1) on Nexus 5000 devices, NX-OS 5.2 before 5.2(3a) on Nexus 7000 devices, and CG-OS CG4 before CG4(2) on Connected 1000 Connected Grid Routers allows remote SMTP servers to execute arbitrary code via a crafted reply, aka Bug IDs CSCtk00695, CSCts56633, CSCts56632, CSCts56628, CSCug14405, and CSCuf61322.

Frequently asked questions

What is CVE-2014-3261?: Buffer overflow in the Smart Call Home implementation in Cisco NX-OS on Fabric Interconnects in Cisco Unified Computing System 1.4 before 1.4(1i), NX-OS 5.0 before 5.0(3)U2(2) on Nexus 3000 devices, NX-OS 4.1 before 4.1(2)E1(1l) on Nexus 4000 devices, NX-OS 5.x before 5.1(3)N1(1) on Nexus 5000 devices, NX-OS 5.2 before 5.2(3a) on Nexus 7000 devices, and CG-OS CG4 before CG4(2) on Connected 1000 Connected Grid Routers allows remote SMTP servers to execute arbitrary code via a crafted reply, aka Bug IDs CSCtk00695, CSCts56633, CSCts56632, CSCts56628, CSCug14405, and CSCuf61322.
How severe is CVE-2014-3261?: CVE-2014-3261 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2014-3261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3261?: CVE-2014-3261 primarily affects Cisco Unified Computing System 6120xp Fabric Interconnect. In total, 75 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3261?: 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-2014-3261 published?: CVE-2014-3261 was published on 2014-05-26 and last updated on 2026-06-17.

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140521-nxos

Affected products (75)

cpe:2.3:h:cisco:unified_computing_system_6120xp_fabric_interconnect:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_computing_system_6140xp_fabric_interconnect:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_computing_system_6248up_fabric_interconnect:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_computing_system_6296up_fabric_interconnect:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:unified_computing_system_infrastructure_and_unified_computing_system_software:1.4\(1j\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:cg-os:cg4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:cg-os:cg4\(1\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:cgr_1120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:cgr_1240:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.2\(3\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(2\)n1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(2\)n2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(2\)n2\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(2a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1c\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n2\(2a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)n2\(2b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1d\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(2a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:5.0\(3\)u2\(1\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_3016q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:*

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