CVE-2006-5278

What it is

Integer overflow in the Real-Time Information Server (RIS) Data Collector service (RisDC.exe) in Cisco Unified Communications Manager (CUCM, formerly CallManager) before 20070711 allow remote attackers to execute arbitrary code via crafted packets, resulting in a heap-based buffer overflow.

At a glance

Exploitability

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

Exploit odds

8.9% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2006-10-13 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2007-07-15 22:30 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-16 22:30 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 8.9% in the next 30 days (EPSS).
• Severity: 10.0 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2007-07-15 22:30 UTC

Last modified

2026-06-16 22:30 UTC

Exploit probability

8.9% · EPSS, next 30 days

Record status

Modified

Affected

• Cisco Unified Callmanager ≤ 3.3\(5\)sr2
• Cisco Unified Callmanager ≤ 4.1\(3\)sr4
• Cisco Unified Callmanager ≤ 4.2\(3\)sr1
• Cisco Unified Callmanager ≤ 5.1\(2\)
• Cisco Unified Callmanager 5.0
• Cisco Unified Communications Manager ≤ 4.3\(1\)

Attack profile CVSS 2.0 · 10.0

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

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