7.8

CVE-2008-4999: nortel unistim_ip_phone Improper Input Validation

CVSS: 7.8v2.0HighModified
Published 07-11-2008Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2008-4999 is a high (CVSS 7.8) Improper Input Validation vulnerability in nortel unistim_ip_phone. EPSS estimates a 3.83% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
3.83%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 07-11-2008
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.83%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.83% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.83%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasedoshardwareVerified

    Nortel UNIStim IP Phone - Remote Ping Denial of Service

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Nortel1 product

1 vendor · 1 product

References

6 links