How severe is CVE-1999-0021?

CVE-1999-0021 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-1999-0021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0021?

CVE-1999-0021 affects Muhammad A. Muquit Wwwcount. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0021?

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-1999-0021 published?

CVE-1999-0021 was published on 1997-11-05 and last updated on 2026-06-16.

CVE-1999-0021

CVE-1999-0021 is a high-severity vulnerability in Muhammad A. Muquit Wwwcount with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Muhammad A. Muquit Wwwcount
Published: 1997-11-05
Last modified: 2026-06-16

Description

Arbitrary command execution via buffer overflow in Count.cgi (wwwcount) cgi-bin program.

Frequently asked questions

What is CVE-1999-0021?: Arbitrary command execution via buffer overflow in Count.cgi (wwwcount) cgi-bin program.
How severe is CVE-1999-0021?: CVE-1999-0021 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0021?: CVE-1999-0021 affects Muhammad A. Muquit Wwwcount. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0021?: 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-1999-0021 published?: CVE-1999-0021 was published on 1997-11-05 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/128

Affected products (1)

cpe:2.3:a:muhammad_a._muquit:wwwcount:2.3:*:*:*:*:*:*:*