Multiple vulnerabilities in the H.323 protocol implementation for Nortel Networks…
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.03811 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:* | all versions | Vulnerable | Nortel |
| cpe:2.3:h:nortel:802.11_wireless_ip_gateway:*:*:*:*:*:*:*:* | all versions | Vulnerable | Nortel |
| cpe:2.3:h:nortel:succession_communication_server_1000:*:*:*:*:*:*:*:* | all versions | Vulnerable | Nortel |
- cpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
- cpe:2.3:h:nortel:802.11_wireless_ip_gateway:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
- cpe:2.3:h:nortel:succession_communication_server_1000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0056
- 2026-10-03 Alias added: GHSA-h3j3-m5v6-7353
- 2026-10-24 EPSS moved to the 90th–95th percentile
- 2026-10-25 EPSS moved to the 50th–90th percentile
- 2026-10-29 EPSS moved to the 90th–95th percentile
References
Sources
- CVE-2004-0056 · CVE Program
- CVE-2004-0056 · NVD
- FIRST EPSS
- GHSA-h3j3-m5v6-7353 · GitHub Advisory Database · CC BY 4.0
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