CVE-2008-4999

What it is

Nortel Networks UNIStim IP Phone 0604DAS allows remote attackers to cause a denial of service (crash) via a long ping packet ("ping of death"). NOTE: this issue could not be reproduced by a third party, who tested it on 0604DAD. In addition, the original researcher was not able to reliably reproduce the issue.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

3.8% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2008-11-07 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2008-11-07 19:36 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-16 22:58 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.8% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2008-11-07 19:36 UTC

Last modified

2026-06-16 22:58 UTC

Exploit probability

3.8% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Nortel Unistim Ip Phone 0604das

Attack profile CVSS 2.0 · 7.8

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

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-2008-4999.md and follow it. Check whether this project is affected by CVE-2008-4999. 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