How severe is CVE-2004-0466?

CVE-2004-0466 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-0466 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0466?

CVE-2004-0466 primarily affects Openconnect Webconnect. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0466?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2004-0466 published?

CVE-2004-0466 was published on 2004-02-21 and last updated on 2026-06-16.

CVE-2004-0466

CVE-2004-0466 is a medium-severity vulnerability in Openconnect Webconnect with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openconnect Webconnect
Published: 2004-02-21
Last modified: 2026-06-16

Description

WebConnect 6.5, 6.4.4, and possibly earlier versions allows remote attackers to cause a denial of service (hang) via a URL containing an MS-DOS device name such as (1) AUX, (2) CON, (3) PRN, (4) COM1, or (5) LPT1.

Frequently asked questions

What is CVE-2004-0466?: WebConnect 6.5, 6.4.4, and possibly earlier versions allows remote attackers to cause a denial of service (hang) via a URL containing an MS-DOS device name such as (1) AUX, (2) CON, (3) PRN, (4) COM1, or (5) LPT1.
How severe is CVE-2004-0466?: CVE-2004-0466 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0466 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0466?: CVE-2004-0466 primarily affects Openconnect Webconnect. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0466?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0466 published?: CVE-2004-0466 was published on 2004-02-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:openconnect:webconnect:6.4.4:*:*:*:*:*:*:*
cpe:2.3:a:openconnect:webconnect:6.5:*:*:*:*:*:*:*

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