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TI-2008-06254 Aliases CVE-2008-6564GHSA-pv9m-5j84-gff3

Nortel UNIStim protocol, as used in Communication Server 1000 and other products, uses…

Priority LOW 38Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Nortel UNIStim protocol, as used in Communication Server 1000 and other products, uses predictable sequence numbers, which allows remote attackers to hijack sessions via sniffing or brute force attacks.

Why it matters now

EPSS 0.02244 82nd 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:nortel:communication_server_1000:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:unistim_protocol:*:*:*:*:*:*:*:*all versionsVulnerableNortel
  • cpe:2.3:a:nortel:communication_server_1000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:unistim_protocol:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-6564
  2. 2026-10-03 Alias added: GHSA-pv9m-5j84-gff3

References

Advisory 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences