How severe is CVE-2002-1866?

CVE-2002-1866 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1866?

CVE-2002-1866 primarily affects Sws Sws Simple Web Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1866?

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

When was CVE-2002-1866 published?

CVE-2002-1866 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1866

CVE-2002-1866 is a medium-severity vulnerability in Sws Sws Simple Web Server 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: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sws Sws Simple Web Server
Published: 2002-12-31
Last modified: 2026-06-16

Description

Simple Web Server (SWS) 0.0.4 through 0.1.0 does not close file descriptors for 404 error messages, which could allow remote attackers to cause a denial of service (file descriptor exhaustion) via multiple requests for pages that do not exist.

Frequently asked questions

What is CVE-2002-1866?: Simple Web Server (SWS) 0.0.4 through 0.1.0 does not close file descriptors for 404 error messages, which could allow remote attackers to cause a denial of service (file descriptor exhaustion) via multiple requests for pages that do not exist.
How severe is CVE-2002-1866?: CVE-2002-1866 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1866?: CVE-2002-1866 primarily affects Sws Sws Simple Web Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1866 published?: CVE-2002-1866 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:sws:sws_simple_web_server:0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:sws:sws_simple_web_server:0.0.4:*:*:*:*:*:*:*
cpe:2.3:a:sws:sws_simple_web_server:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:sws:sws_simple_web_server:0.1.1:*:*:*:*:*:*:*

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