How severe is CVE-2000-0856?

CVE-2000-0856 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2000-0856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0856?

CVE-2000-0856 affects Xs4all Data Xs4all Data Sunftp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0856?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2000-0856 published?

CVE-2000-0856 was published on 2000-11-14 and last updated on 2026-06-16.

CVE-2000-0856

CVE-2000-0856 is a high-severity vulnerability in Xs4all Data Xs4all Data Sunftp with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Xs4all Data Xs4all Data Sunftp
Published: 2000-11-14
Last modified: 2026-06-16

Description

Buffer overflow in SunFTP build 9(1) allows remote attackers to cause a denial of service or possibly execute arbitrary commands via a long GET request.

Frequently asked questions

What is CVE-2000-0856?: Buffer overflow in SunFTP build 9(1) allows remote attackers to cause a denial of service or possibly execute arbitrary commands via a long GET request.
How severe is CVE-2000-0856?: CVE-2000-0856 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2000-0856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0856?: CVE-2000-0856 affects Xs4all Data Xs4all Data Sunftp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2000-0856 published?: CVE-2000-0856 was published on 2000-11-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:xs4all_data:xs4all_data_sunftp:1.0_build_9:*:*:*:*:*:*:*

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