MEDIUM
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
Published Jun 1, 2005
5.0
MEDIUMCVSS 2.0
EPSS 1.59%
Description
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.
Affected products
No data.
OR
- 1000_vpn_switch
- 1500_vpn_switch
- 1600_secure_ip_services_gateway
- 2000_vpn_switch
- 2500_vpn_switch
- 2600_secure_ip_services_gateway
- 4000_vpn_switch
- 4500_secure_ip_services_gateway
- 4600_secure_ip_services_gateway
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.59% 0.01591
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01591
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.59% (0.01591) | 74.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.59% (0.01591) | 72.42th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.79% (0.00792) | 72.25th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.04% (0.01040) | 84.62th | v3 (v2023.03.01) |
| May 8, 2024 | 1.04% (0.01040) | 83.86th | v3 (v2023.03.01) |
| May 3, 2024 | 1.30% (0.01296) | 85.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.30% (0.01296) | 83.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- http://securitytracker.com/id?1014068 vdb-entryx_refsource_SECTRACK
- http://www.nta-monitor.com/news/vpn-flaws/nortel/vpn-router-dos/ x_refsource_MISC
- http://www.securityfocus.com/archive/1/399423 mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/13792 vdb-entryx_refsource_BIDPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://securitytracker.com/id?1014068 | vdb-entryx_refsource_SECTRACK | |
| http://www.nta-monitor.com/news/vpn-flaws/nortel/vpn-router-dos/ | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/399423 | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/13792 | vdb-entryx_refsource_BIDPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 1, 2005
Updated Aug 7, 2024
Reserved Jun 1, 2005
Link CVE-2005-1802
CISA Vulnrichment
Updated n/a