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Fencer Vulns
critical 10.0

CVE-2000-0967 in the critical feed json

PHP 3 and 4 do not properly cleanse user-injected format strings, which allows remote attackers to execute arbitrary commands by triggering…

published 2000-12-19 25 y ago modified 2026-09-23 47 d ago also EUVD-2000-0954

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.6%
EPSS 20.6% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

PHP 3 and 4 do not properly cleanse user-injected format strings, which allows remote attackers to execute arbitrary commands by triggering error messages that are improperly written to the error logs.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2000-0967 updated

security flaw

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-20286)
  2. Published

Exploit prediction

20.63% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20286 PHP 3.0/4.0 - Error Logging Format String remote, 2000-10-12
  • EDB-220 PHP 3.0.16/4.0.2 - Remote Format Overflow remote, 2000-12-06
  • securityfocus.com http://www.securityfocus.com/bid/1786 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.