CVE-2009-4143

PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack...

10.0 High

PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack vectors related to (1) interrupt corruption of the SESSION superglobal array and (2) the session.save_path directive.

Exploit likelihood

2.95%Up 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2009-4143
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-4143
Updated: 2026-11-02

EUVDEUVD-2009-4113 No score

Record: EUVD-2009-4113
Updated: 2026-11-03

GitHub AdvisoriesGHSA-h4mq-28x6-5x4j No score

PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack...

Record: GHSA-h4mq-28x6-5x4j
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`php5` Debian:5.0 From an advisory covering 2 CVEs	before 5.2.6.dfsg.1-1+lenny6, plus listed versions 5.2.6.dfsg.1-1+lenny25.2.6.dfsg.1-1+lenny35.2.6.dfsg.1-1+lenny4	5.2.6.dfsg.1-1+lenny6

History

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

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

In short

CVE-2009-4143 is a high vulnerability (CVSS 10.0) in Php, published December 21, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.95%, the 87th percentile. No source names a fixed version.

References

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