How severe is CVE-2000-0527?

CVE-2000-0527 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2000-0527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0527?

CVE-2000-0527 affects 3r Soft Mailstudio 2000. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0527?

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

When was CVE-2000-0527 published?

CVE-2000-0527 was published on 2000-06-09 and last updated on 2026-06-16.

CVE-2000-0527

CVE-2000-0527 is a critical-severity vulnerability in 3r Soft Mailstudio 2000 with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: 3r Soft Mailstudio 2000
Published: 2000-06-09
Last modified: 2026-06-16

Description

userreg.cgi CGI program in MailStudio 2000 2.0 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters.

Frequently asked questions

What is CVE-2000-0527?: userreg.cgi CGI program in MailStudio 2000 2.0 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters.
How severe is CVE-2000-0527?: CVE-2000-0527 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2000-0527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0527?: CVE-2000-0527 affects 3r Soft Mailstudio 2000. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0527?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2000-0527 published?: CVE-2000-0527 was published on 2000-06-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:3r_soft:mailstudio_2000:2.0:*:*:*:*:*:*:*

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