CVE-2014-3261

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

2.0% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2014-05-26 00:25 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:07 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.0% in the next 30 days (EPSS).
• Severity: 7.6 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-05-26 00:25 UTC

Last modified

2026-06-17 00:07 UTC

Exploit probability

2.0% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Cisco Unified Computing System 6120xp Fabric Interconnect
• Cisco Unified Computing System 6140xp Fabric Interconnect
• Cisco Unified Computing System 6248up Fabric Interconnect
• Cisco Unified Computing System 6296up Fabric Interconnect
• Cisco Unified Computing System Infrastructure And Unified Computing System Software 1.4\(1j\)
• Cisco cg-os cg4
• Cisco cg-os cg4\(1\)
• Cisco Cgr 1120

Attack profile CVSS 2.0 · 7.6

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2014-3261.md and follow it. Check whether this project is affected by CVE-2014-3261. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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