CVE-2009-0632

What it is

The IP Phone Personal Address Book (PAB) Synchronizer feature in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.1, 4.2 before 4.2(3)SR4b, 4.3 before 4.3(2)SR1b, 5.x before 5.1(3e), 6.x before 6.1(3), and 7.0 before 7.0(2) sends privileged directory-service account credentials to the client in cleartext, which allows remote attackers to modify the CUCM configuration and perform other privileged actions by intercepting these credentials, and then using them in requests unrelated to the intended synchronization task, as demonstrated by (1) DC Directory account credentials in CUCM 4.x and (2) TabSyncSysUser account credentials in CUCM 5.x through 7.x.

At a glance

Exploitability

Can be exploited over the network with a login. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.0% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2009-03-12 15:20 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:05 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.0% in the next 30 days (EPSS).
• Severity: 9.0 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2009-03-12 15:20 UTC

Last modified

2026-06-16 23:05 UTC

Exploit probability

3.0% · EPSS, next 30 days

Weakness

CWE-255

Record status

Modified

Affected

• Cisco Unified Communications Manager 4.1
• Cisco Unified Communications Manager 4.2
• Cisco Unified Communications Manager 4.2\(3\)sr1
• Cisco Unified Communications Manager 4.2\(3\)sr2b
• Cisco Unified Communications Manager 4.2\(3\)sr3
• Cisco Unified Communications Manager 4.2\(3\)sr4
• Cisco Unified Communications Manager 4.3
• Cisco Unified Communications Manager 4.3\(1\)sr.1

Attack profile CVSS 2.0 · 9.0

Attack vector

Network

Complexity

Low

Authentication

Single

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-2009-0632.md and follow it. Check whether this project is affected by CVE-2009-0632. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge