CVE-2007-1375

Integer overflow in the substr_compare function in PHP 5.2.1 and earlier allows context-dependent...

5.0 MediumPublic exploit

Integer overflow in the substr_compare function in PHP 5.2.1 and earlier allows context-dependent attackers to read sensitive memory via a large value in the length argument, a different vulnerability than CVE-2006-1991.

Exploit likelihood

8.47%Down 4.1 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2007-1375
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2007-1375
Updated: 2026-11-02

EUVDEUVD-2007-1371 No score

Record: EUVD-2007-1371
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cqfv-6frg-v5c7 No score

Integer overflow in the substr_compare function in PHP 5.2.1 and earlier allows context-dependent...

Record: GHSA-cqfv-6frg-v5c7
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`php5` Debian:4.0 From an advisory covering 17 CVEs	before 5.2.0-8+etch3, plus listed versions 5.2.0-8+etch1	5.2.0-8+etch3
`php5` Debian:5.0 From an advisory covering 18 CVEs	before 5.2.0-10+lenny1	5.2.0-10+lenny1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	PHP 5.2.1 - 'substr_compare()' Information Leak	2007-03-07

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	aliases
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-2007-1375 is a medium vulnerability (CVSS 5.0) in Php, published March 10, 2007. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.47%, the 95th percentile. No source names a fixed version.

References

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