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Vulnerability record · CVE-2003-0166 · published 2 April 2003

CVE-2003-0166: Php vulnerability

Php · Php

Integer signedness error in emalloc() function for PHP before 4.3.2 allow remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via negative arguments to functions such as (1) socket_recv, (2) socket_recvfrom, and possibly other functions.

7.5 CVSS 2.0 High EPSS 14% · top 3.5%
7.5CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Integer signedness error in emalloc() function for PHP before 4.3.2 allow remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via negative arguments to functions such as (1) socket_recv, (2) socket_recvfrom, and possibly other functions.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000691
http://marc.info/?l=bugtraq&m=104869828526885&w=2
http://marc.info/?l=bugtraq&m=104878100719467&w=2
http://marc.info/?l=bugtraq&m=104931415307111&w=2
http://www.securityfocus.com/bid/7197 ExploitVendor Advisory
http://www.securityfocus.com/bid/7198 ExploitVendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000691
http://marc.info/?l=bugtraq&m=104869828526885&w=2
http://marc.info/?l=bugtraq&m=104878100719467&w=2
http://marc.info/?l=bugtraq&m=104931415307111&w=2
http://www.securityfocus.com/bid/7197 ExploitVendor Advisory
http://www.securityfocus.com/bid/7198 ExploitVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2003-0166), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.