CVE-2010-4156

The mb_strcut function in Libmbfl 1.1.0, as used in PHP 5.3.x through 5.3.3, allows context...

5.0 MediumPublic exploitFix available

CVE-2010-4156 is a medium vulnerability (CVSS 5.0) in Scottmac Libmbfl, published November 10, 2010. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 12.8%, the 96th percentile. Fixed in php53 0:5.3.3-1.el5_6.1.

The mb_strcut function in Libmbfl 1.1.0, as used in PHP 5.3.x through 5.3.3, allows context-dependent attackers to obtain potentially sensitive information via a large value of the third parameter (aka the length parameter).

Exploit likelihood

12.8%Up 0.2 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2010-4156
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-4156
Updated: 2026-11-02

EUVDEUVD-2010-4132 No score

Record: EUVD-2010-4132
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9mqx-xjgw-xp5v No score

The mb_strcut function in Libmbfl 1.1.0, as used in PHP 5.3.x through 5.3.3, allows context...

Record: GHSA-9mqx-xjgw-xp5v
Weakness: CWE-20
Updated: 2026-11-02

Affected products

scottmac libmbfl

Affected packages

Affected packages
Package	Affected	Fixed
`php53` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-bcmath` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-cli` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-common` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-dba` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-debuginfo` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-devel` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-gd` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-imap` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-intl` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1

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Affected packages
Package	Affected	Fixed
`php53-ldap` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-mbstring` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-mysql` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-odbc` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-pdo` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-pgsql` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-process` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-pspell` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-snmp` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-soap` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-xml` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1
`php53-xmlrpc` Red Hat:enterprise_linux:5::server	before 0:5.3.3-1.el5_6.1	0:5.3.3-1.el5_6.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	PHP 5.3.x - 'mb_strcut()' Information Disclosure	2010-11-07

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

References

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