CVE-2005-1802 json
Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISA…
published 2005-05-27 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-1804
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
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.
Patch / fix
- securityfocus.com/bid/13792 advisory
Exploit prediction
1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
securityfocus.com
/bid/13792
vdb-entry, patch, vendor-advisory
-
securitytracker.com
/id?1014068
vdb-entry
- nta-monitor.com /news/vpn-flaws/nortel/vpn-router-dos/
-
securityfocus.com
/archive/1/399423
mailing-list
Sources
- CVE List CVE-2005-1802
- NVD CVE-2005-1802
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