Summary
generated automatically from NVD dataCVE-2001-0042 is a directory traversal flaw in PHP 3.x (PHP3) running on Apache 1.3.6, listed under Apache HTTP Server 1.3. Remote attackers can use a modified ".." (dot dot) sequence containing "%5c" (an encoded backslash) to read arbitrary files on the server. It is rated 5.0 (MEDIUM) under CVSS v2.0, with network access, low complexity, no authentication, and a partial impact on confidentiality only.
NVD description
PHP 3.x (PHP3) on Apache 1.3.6 allows remote attackers to read arbitrary files via a modified .. (dot dot) attack containing "%5c" (encoded backslash) sequences.
EPSS · FIRST.org
9.6%probability of exploitation in the next 30 days
Higher than 95% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-30, recomputed daily by FIRST.org.
CVSS v2.0 Score
Information
- Published
- 16 févr. 2001
- Updated
- 16 juin 2026
- Status
- Modified
- Source
- cve@mitre.org
Affected products
Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.
Weaknesses (CWE)
References (6)
- http://www.securityfocus.com/archive/1/149210ExploitVendor Advisory
- http://www.securityfocus.com/bid/2060ExploitVendor Advisory
- http://www.securityfocus.com/archive/1/149210ExploitVendor Advisory
- http://www.securityfocus.com/bid/2060ExploitVendor Advisory
Similar CVEs
Other vulnerabilities of type
Running Apache HTTP Server? Know which CVEs hit your version.
Add the product and its version: cveo.tech lists the CVEs that affect it right away, then alerts you by email when a new one affects it — including before NVD has finished its analysis. Free, an account is all it takes.