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Case File

CVE-2001-1431

MEDIUM · CVSS 5 EPSS 1.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2001-10-08 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.0. It may be remotely exploitable.

CVE
CVE-2001-1431
Severity
MEDIUM
CVSS
5
EPSS
1.30%

Original NVD Description

Nokia Firewall Appliances running IPSO 3.3 and VPN-1/FireWall-1 4.1 Service Pack 3, IPSO 3.4 and VPN-1/FireWall-1 4.1 Service Pack 4, and IPSO 3.4 or IPSO 3.4.1 and VPN-1/FireWall-1 4.1 Service Pack 5, when SYN Defender is configured in Active Gateway mode, does not properly rewrite the third packet of a TCP three-way handshake to use the NAT IP address, which allows remote attackers to gain sensitive information.