CVE-2010-1128

The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected...

6.4 MediumPublic exploit

The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which makes it easier for context-dependent attackers to guess values that were intended to be unpredictable, as demonstrated by session cookies generated by using the uniqid function.

Exploit likelihood

8.09%Up 0.9 points since Feb 4, 2022

What each source reports

NVD Score used 6.4

Record: CVE-2010-1128
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:P/I:P/A:N
Weakness: CWE-310
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-1128
Updated: 2026-11-02

EUVDEUVD-2010-1159 No score

Record: EUVD-2010-1159
Updated: 2026-11-03

GitHub AdvisoriesGHSA-59wc-4gch-hhw5 No score

The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected...

Record: GHSA-59wc-4gch-hhw5
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`php5` Debian:5.0 From an advisory covering 6 CVEs	before 5.2.6.dfsg.1-1+lenny10, plus listed versions 5.2.6.dfsg.1-1+lenny25.2.6.dfsg.1-1+lenny35.2.6.dfsg.1-1+lenny45.2.6.dfsg.1-1+lenny65.2.6.dfsg.1-1+lenny85.2.6.dfsg.1-1+lenny9	5.2.6.dfsg.1-1+lenny10
`php5` Debian:6.0 From an advisory covering 6 CVEs	before 5.3.3-7+squeeze1, plus listed versions 5.3.3-7	5.3.3-7+squeeze1
`php` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-devel` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-domxml` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-gd` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-imap` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ldap` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mbstring` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31

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Affected packages
Package	Affected	Fixed
`php-mysql` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ncurses` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-odbc` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pear` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pgsql` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-snmp` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-xmlrpc` Red Hat:enterprise_linux:4::as From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-devel` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-domxml` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-gd` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-imap` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ldap` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mbstring` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mysql` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ncurses` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-odbc` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pear` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pgsql` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-snmp` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-xmlrpc` Red Hat:enterprise_linux:4::desktop From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-devel` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-domxml` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-gd` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-imap` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ldap` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mbstring` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mysql` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ncurses` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-odbc` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pear` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pgsql` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-snmp` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-xmlrpc` Red Hat:enterprise_linux:4::es From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-devel` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-domxml` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-gd` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-imap` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ldap` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mbstring` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-mysql` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-ncurses` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-odbc` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pear` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-pgsql` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-snmp` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php-xmlrpc` Red Hat:enterprise_linux:4::ws From an advisory covering 7 CVEs	before 0:4.3.9-3.31	0:4.3.9-3.31
`php` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-bcmath` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-cli` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-common` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-dba` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-debuginfo` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-devel` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-gd` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-imap` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-ldap` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-mbstring` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-mysql` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-ncurses` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-odbc` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-pdo` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-pgsql` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-snmp` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-soap` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-xml` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-xmlrpc` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-bcmath` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-cli` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-common` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-dba` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-debuginfo` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-devel` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-gd` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-imap` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-ldap` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-mbstring` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-mysql` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-ncurses` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-odbc` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-pdo` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-pgsql` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-snmp` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-soap` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-xml` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3
`php-xmlrpc` Red Hat:enterprise_linux:5::server From an advisory covering 7 CVEs	before 0:5.1.6-27.el5_5.3	0:5.1.6-27.el5_5.3

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	PHP 5.3.1 - LCG Entropy Security	2010-02-26

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-1128 is a medium vulnerability (CVSS 6.4) in Php, published March 26, 2010. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.09%, the 94th percentile. No source names a fixed version.

References

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