CVE-2003-1004: n/a vulnerability

CVE-2003-1004: Cisco PIX firewall 6.2.x through 6.2.3, when configured as a VPN Client, allows remote attackers to cause a...

Cisco PIX firewall 6.2.x through 6.2.3, when configured as a VPN Client, allows remote attackers to cause a denial of service (dropped IPSec tunnel connection) via an IKE Phase I negotiation request to the outside interface of the firewall.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 18:34 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects Cisco PIX firewalls running 6.2.x through 6.2.3 when used as a VPN Client. A remote attacker could disrupt the IPSec tunnel, causing VPN connectivity loss. The provided sources do not include CVSS, confirmed exploitation, or detailed remediation text. Exposure is limited to Cisco PIX deployments on the listed 6.2.x versions configured as VPN Clients with the outside interface reachable for IKE/IPSec negotiation. Modern environments are less likely to run this legacy configuration, but old network appliances can persist unnoticed. Treat this as a targeted availability risk for legacy VPN infrastructure. It should be prioritized if Cisco PIX still supports business-critical VPN links, but the available evidence does not justify emergency handling without confirmed affected assets. Mitigation focus: Check Cisco advisory cisco-sa-20031215-pix for vendor-approved remediation.; Inventory Cisco PIX versions and VPN Client configuration status.; Prioritize vendor-guided update, replacement, or configuration change for affected devices..

Prepared: Jun 30, 2026, 07:43 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: Dec 17, 2003, 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

1Source 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

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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