CVE-2001-1431: n/a vulnerability

CVE-2001-1431: Nokia Firewall Appliances running IPSO 3.3 and VPN-1/FireWall-1 4.1 Service Pack 3, IPSO 3.4 and VPN-1/Fire...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 04:58 UTC (UTC+00:00)

Security readout for executives and security teams

This legacy issue affects specific Nokia firewall appliance software combinations when SYN Defender is set to Active Gateway mode. The firewall may expose sensitive network information during TCP connection setup because NAT rewriting is mishandled. The provided sources do not include a CVSS score, confirmed exploitation, or a named patch. Exposure appears limited to legacy Nokia Firewall Appliances running the named IPSO and VPN-1/FireWall-1 version combinations with SYN Defender configured in Active Gateway mode. Organizations without those products or configuration are unlikely to be affected based on the provided evidence. Treat this as a targeted legacy firewall exposure review, not an emergency response, unless affected internet-facing appliances are still in service. The main business risk is sensitive network information leakage from obsolete perimeter infrastructure with unclear vendor support. Mitigation focus: Inventory Nokia firewall appliances and match IPSO/VPN-1 version combinations against the CVE description.; Check whether SYN Defender is configured in Active Gateway mode.; Consult vendor or CERT guidance for supported fixes or configuration changes..

Prepared: Jun 29, 2026, 23:12 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 24, 2005, 05:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
nokia-cp-packet-retransmission(8293)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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