How severe is CVE-1999-0066?

CVE-1999-0066 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-1999-0066 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0066?

CVE-1999-0066 primarily affects John S. Roberts Anyform. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0066?

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-1999-0066 published?

CVE-1999-0066 was published on 1995-07-31 and last updated on 2026-06-16.

CVE-1999-0066

CVE-1999-0066 is a critical-severity vulnerability in John S. Roberts Anyform with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: John S. Roberts Anyform
Published: 1995-07-31
Last modified: 2026-06-16

Description

AnyForm CGI remote execution.

Frequently asked questions

What is CVE-1999-0066?: AnyForm CGI remote execution.
How severe is CVE-1999-0066?: CVE-1999-0066 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-1999-0066 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0066?: CVE-1999-0066 primarily affects John S. Roberts Anyform. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0066?: 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-1999-0066 published?: CVE-1999-0066 was published on 1995-07-31 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/719

Affected products (2)

cpe:2.3:a:john_s._roberts:anyform:1.0:*:*:*:*:*:*:*
cpe:2.3:a:john_s._roberts:anyform:2.0:*:*:*:*:*:*:*