CVE-2004-0056 — Multiple vulnerabilities in the H.323 protocol implementation for Nortel Networks Business Communications Manager (BCM), Succession 1000 IP Trunk and IP Peer Networking, and 802.11 Wireless IP Gateway allow remote attackers to cause a denial of service and possibly execute arbitrary code, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol

Back Back to CVE browser

HIGH

Multiple vulnerabilities in the H.323 protocol implementation for Nortel Networks Business Communications Manager (BCM), Succession 1000 IP Trunk and IP Peer Networking, and 802.11 Wireless IP Gateway allow remote attackers to cause a denial of service and possibly execute arbitrary code, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol

Published Jan 15, 2004

7.5

HIGH

CVSS 2.0

EPSS 3.81%

Description

Multiple vulnerabilities in the H.323 protocol implementation for Nortel Networks Business Communications Manager (BCM), Succession 1000 IP Trunk and IP Peer Networking, and 802.11 Wireless IP Gateway allow remote attackers to cause a denial of service and possibly execute arbitrary code, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.

Affected products

Remediation

No remediation recorded yet.

Metrics

3.81% 0.03811

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.03811

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	3.81% (0.03811)	89.70th	v5 (v2026.06.15)
Jun 15, 2026	3.81% (0.03811)	88.63th	v5 (v2026.06.15)
Sep 19, 2025	5.13% (0.05133)	89.47th	v4 (v2025.03.14)
Aug 25, 2025	6.26% (0.06259)	90.53th	v4 (v2025.03.14)
Mar 17, 2025	8.05% (0.08048)	91.50th	v4 (v2025.03.14)
Dec 12, 2024	4.01% (0.04014)	92.40th	v3 (v2023.03.01)
Mar 7, 2023	4.01% (0.04012)	90.70th	v3 (v2023.03.01)
Mar 6, 2023	4.29% (0.04291)	87.64th	v2 (v2022.01.01)
Apr 1, 2022	4.29% (0.04291)	86.39th	v2 (v2022.01.01)
Feb 4, 2022	4.29% (0.04291)	70.14th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (5)

http://www.cert.org/advisories/CA-2004-01.html
third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
http://www.kb.cert.org/vuls/id/749342
third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/9406
vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1008687
vdb-entryx_refsource_SECTRACK
http://www.uniras.gov.uk/vuls/2004/006489/h323.htm
x_refsource_MISC

Link	Providers	Tags
http://www.cert.org/advisories/CA-2004-01.html		third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
http://www.kb.cert.org/vuls/id/749342		third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/9406		vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1008687		vdb-entryx_refsource_SECTRACK
http://www.uniras.gov.uk/vuls/2004/006489/h323.htm		x_refsource_MISC

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jan 15, 2004

Updated Aug 8, 2024

Reserved Jan 14, 2004

Link CVE-2004-0056

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2004-0056

Red Hat

Severity n/a

Public date n/a

Links CVE-2004-0056