CVE-2014-3312

What it is

The debug console interface on Cisco Small Business SPA300 and SPA500 phones does not properly perform authentication, which allows local users to execute arbitrary debug-shell commands, or read or modify data in memory or a filesystem, via direct access to this interface, aka Bug ID CSCun77435.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2014-07-09 11:07 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: 0.4% in the next 30 days (EPSS).
• Severity: 6.9 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-07-09 11:07 UTC

Last modified

2026-06-17 00:07 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-287 · Improper authentication

Record status

Modified

Affected

• Cisco Spa 301 1 Line Ip Phone
• Cisco Spa 303 3 Line Ip Phone
• Cisco Spa 501g 8-line Ip Phone
• Cisco Spa 502g 1-line Ip Phone
• Cisco Spa 504g 4-line Ip Phone
• Cisco Spa 508g 8-line Ip Phone
• Cisco Spa 509g 12-line Ip Phone
• Cisco Spa 512g 1-line Ip Phone

Attack profile CVSS 2.0 · 6.9

Attack vector

Local

Complexity

Medium

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-2014-3312.md and follow it. Check whether this project is affected by CVE-2014-3312. 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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