Description
scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read.
Published: 2006-08-08
Score: 4.6 Medium
EPSS: 5.9% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2006-4013 scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read.
Ubuntu USN Ubuntu USN USN-342-1 PHP vulnerabilities
References
Link Providers
ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc cve-icon cve-icon
http://bugs.php.net/bug.php?id=38322 cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2006-0688.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2006-0736.html cve-icon cve-icon
http://secunia.com/advisories/21403 cve-icon cve-icon
http://secunia.com/advisories/21467 cve-icon cve-icon
http://secunia.com/advisories/21546 cve-icon cve-icon
http://secunia.com/advisories/21608 cve-icon cve-icon
http://secunia.com/advisories/21683 cve-icon cve-icon
http://secunia.com/advisories/21768 cve-icon cve-icon
http://secunia.com/advisories/21847 cve-icon cve-icon
http://secunia.com/advisories/22004 cve-icon cve-icon
http://secunia.com/advisories/22039 cve-icon cve-icon
http://secunia.com/advisories/22069 cve-icon cve-icon
http://secunia.com/advisories/22440 cve-icon cve-icon
http://secunia.com/advisories/22487 cve-icon cve-icon
http://secunia.com/advisories/22538 cve-icon cve-icon
http://secunia.com/advisories/23247 cve-icon cve-icon
http://security.gentoo.org/glsa/glsa-200608-28.xml cve-icon cve-icon
http://securityreason.com/securityalert/1341 cve-icon cve-icon
http://securitytracker.com/id?1016984 cve-icon cve-icon
http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm cve-icon cve-icon
http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm cve-icon cve-icon
http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDKSA-2006:144 cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2006_19_sr.html cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2006_20_sr.html cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2006_22_sr.html cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2006_52_php.html cve-icon cve-icon
http://www.php.net/ChangeLog-5.php#5.1.5 cve-icon cve-icon
http://www.php.net/release_5_1_5.php cve-icon cve-icon
http://www.plain-text.info/sscanf_bug.txt cve-icon cve-icon
http://www.redhat.com/support/errata/RHSA-2006-0669.html cve-icon cve-icon
http://www.redhat.com/support/errata/RHSA-2006-0682.html cve-icon cve-icon
http://www.securityfocus.com/archive/1/442438/30/0/threaded cve-icon cve-icon
http://www.securityfocus.com/bid/19415 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-342-1 cve-icon cve-icon
http://www.vupen.com/english/advisories/2006/3193 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2006-4020 cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11062 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2006-4020 cve-icon
History

Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.03881}

epss

{'score': 0.04403}


Subscriptions

Php Php
Redhat Enterprise Linux Rhel Application Stack Rhel Stronghold
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T18:57:43.862Z

Reserved: 2006-08-08T00:00:00.000Z

Link: CVE-2006-4020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2006-08-08T20:04:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2006-4020

cve-icon Redhat

Severity : Low

Publid Date: 2006-08-04T00:00:00Z

Links: CVE-2006-4020 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses