How severe is CVE-2001-0647?

CVE-2001-0647 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0647 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0647?

CVE-2001-0647 affects Orange Software Orange Web Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0647?

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

When was CVE-2001-0647 published?

CVE-2001-0647 was published on 2001-08-06 and last updated on 2026-06-16.

CVE-2001-0647

CVE-2001-0647 is a medium-severity vulnerability in Orange Software Orange 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: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Orange Software Orange Web Server
Published: 2001-08-06
Last modified: 2026-06-16

Description

Orange Web Server 2.1, based on GoAhead, allows a remote attacker to perform a denial of service via an HTTP GET request that does not include the HTTP version.

Frequently asked questions

What is CVE-2001-0647?: Orange Web Server 2.1, based on GoAhead, allows a remote attacker to perform a denial of service via an HTTP GET request that does not include the HTTP version.
How severe is CVE-2001-0647?: CVE-2001-0647 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0647 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0647?: CVE-2001-0647 affects Orange Software Orange Web Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0647?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0647 published?: CVE-2001-0647 was published on 2001-08-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:orange_software:orange_web_server:2.1:*:*:*:*:*:*:*

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