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TI-2005-01709 Aliases CVE-2005-1802GHSA-c5fw-9qc8-grvm

Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service…

Priority LOW 26Published · 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
None · None · Partial
Fix status
No fix listed

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

Summary

Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.

Why it matters now

EPSS 0.01591 75th 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 · 17

CPEVersionsRoleVendor
cpe:2.3:h:nortel:contivity:1000_vpn_switch:*:*:*:*:*:*:*1000_vpn_switchVulnerableNortel
cpe:2.3:h:nortel:contivity:1500_vpn_switch:*:*:*:*:*:*:*1500_vpn_switchVulnerableNortel
cpe:2.3:h:nortel:contivity:1600_secure_ip_services_gateway:*:*:*:*:*:*:*1600_secure_ip_services_gatewayVulnerableNortel
cpe:2.3:h:nortel:contivity:2000_vpn_switch:*:*:*:*:*:*:*2000_vpn_switchVulnerableNortel
cpe:2.3:h:nortel:contivity:2500_vpn_switch:*:*:*:*:*:*:*2500_vpn_switchVulnerableNortel
cpe:2.3:h:nortel:contivity:2600_secure_ip_services_gateway:*:*:*:*:*:*:*2600_secure_ip_services_gatewayVulnerableNortel
cpe:2.3:h:nortel:contivity:4000_vpn_switch:*:*:*:*:*:*:*4000_vpn_switchVulnerableNortel
cpe:2.3:h:nortel:contivity:4500_secure_ip_services_gateway:*:*:*:*:*:*:*4500_secure_ip_services_gatewayVulnerableNortel
cpe:2.3:h:nortel:contivity:4600_secure_ip_services_gateway:*:*:*:*:*:*:*4600_secure_ip_services_gatewayVulnerableNortel
cpe:2.3:h:nortel:vpn_router_1010:*:*:*:*:*:*:*:*all versionsVulnerableNortel
  • cpe:2.3:h:nortel:contivity:1000_vpn_switch:*:*:*:*:*:*:* Versions 1000_vpn_switch Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:1500_vpn_switch:*:*:*:*:*:*:* Versions 1500_vpn_switch Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:1600_secure_ip_services_gateway:*:*:*:*:*:*:* Versions 1600_secure_ip_services_gateway Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:2000_vpn_switch:*:*:*:*:*:*:* Versions 2000_vpn_switch Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:2500_vpn_switch:*:*:*:*:*:*:* Versions 2500_vpn_switch Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:2600_secure_ip_services_gateway:*:*:*:*:*:*:* Versions 2600_secure_ip_services_gateway Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:4000_vpn_switch:*:*:*:*:*:*:* Versions 4000_vpn_switch Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:4500_secure_ip_services_gateway:*:*:*:*:*:*:* Versions 4500_secure_ip_services_gateway Vulnerable ·Nortel
  • cpe:2.3:h:nortel:contivity:4600_secure_ip_services_gateway:*:*:*:*:*:*:* Versions 4600_secure_ip_services_gateway Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_1010:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:nortel:vpn_router_1050:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_1100:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_1700:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_1740:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_2700:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_5000:*:*:*:*:*:*:*:*all versionsVulnerableNortel
cpe:2.3:h:nortel:vpn_router_600:*:*:*:*:*:*:*:*all versionsVulnerableNortel
  • cpe:2.3:h:nortel:vpn_router_1050:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_1100:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_1700:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_1740:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_2700:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_5000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel
  • cpe:2.3:h:nortel:vpn_router_600:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Nortel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-1802
  2. 2026-10-03 Alias added: GHSA-c5fw-9qc8-grvm

References

Other 1

  • TI-2007-02251 Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx… CVSS 2.0HIGH 10.0
  • TI-2007-02252 Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx… CVSS 2.0HIGH 7.5
  • TI-2005-02443 Nortel Contivity VPN Client V05_01.030, when configuring a certificate to be used as… CVSS 2.0HIGH 7.2
  • TI-2004-01002 Nortel Networks Contivity VPN Client displays a different error message depending on… CVSS 2.0MEDIUM 5.0
  • TI-2000-00063 cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to read… CVSS 2.0MEDIUM 5.0
  • TI-2000-00064 cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
See all 8 →

Sources

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