CVE-2000-0967PHP Vulnerability
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.
Published Oct 12, 2000 · Updated Sep 23, 2026
Key Facts
Patch immediately- CVE-2000-0967 is a high-severity vulnerability (CVSS 10.0 v2) affecting PHP.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 21% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
21%
Higher than 97.4% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- patch1786
Description
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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PHPPHP | 3.0, 4.0 | n/a |
Timeline
Publicly disclosed
Oct 12, 2000
Last updated
Sep 23, 2026
References
- patch1786
- exploitExploitDB-20286
- exploitExploitDB-220
- other20001012 Conectiva Linux Security Announcement - mod_php3
- otherphp-logging-format-string(5359)
FAQ
Common Questions.
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.
Affected: PHP versions 3.0, 4.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2000-0967 On Your Attack Surface?
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