How severe is CVE-2001-0099?

CVE-2001-0099 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2001-0099 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0099?

CVE-2001-0099 affects Brian Stanback Bsguest.cgi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0099?

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-2001-0099 published?

CVE-2001-0099 was published on 2001-02-12 and last updated on 2026-06-16.

CVE-2001-0099

CVE-2001-0099 is a critical-severity vulnerability in Brian Stanback Bsguest.cgi with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Brian Stanback Bsguest.cgi
Published: 2001-02-12
Last modified: 2026-06-16

Description

bsguest.cgi guestbook script allows remote attackers to execute arbitrary commands via shell metacharacters in the email address.

Frequently asked questions

What is CVE-2001-0099?: bsguest.cgi guestbook script allows remote attackers to execute arbitrary commands via shell metacharacters in the email address.
How severe is CVE-2001-0099?: CVE-2001-0099 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2001-0099 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0099?: CVE-2001-0099 affects Brian Stanback Bsguest.cgi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0099?: 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-2001-0099 published?: CVE-2001-0099 was published on 2001-02-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:brian_stanback:bsguest.cgi:*:*:*:*:*:*:*:*