What is CVE-1999-0066?

CVE-1999-0066 is a critical-severity vulnerability in John S. Roberts Anyform. CVSS score: 9.8/10. Published 1995-07-31.

How severe is CVE-1999-0066?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in John S. Roberts Anyform

CVE-1999-0066

AnyForm CGI remote execution.

Published 1995-07-31 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.123 (96.1th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.124 · newest: 0.123 · change: -0.001

Affected products

John S. Roberts Anyform — versions 1.0, 2.0

References

www.securityfocus.com/bid/719 (vdb-entry)

Frequently asked questions

What is CVE-1999-0066?: CVE-1999-0066 is a critical-severity vulnerability in John S. Roberts Anyform. CVSS score: 9.8/10. Published 1995-07-31.
How severe is CVE-1999-0066?: Critical severity. CVSS v3 base score is 9.8 out of 10.