Is CVE-2009-4023 in the CISA KEV catalog?

No. CVE-2009-4023 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-4023?

CVE-2009-4023 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2009-4023?

CVE-2009-4023 has an EPSS score of 2.40% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-4023?

Upgrade php-mail on debian 11 to 1.1.14-2 or later.

CVE & CISA-KEV Catalog

CVE-2009-4023

HIGHEPSS 82th pctl

7.5

CVSS v2

NVD

Description

Argument injection vulnerability in the sendmail implementation of the Mail::Send method (Mail/sendmail.php) in the Mail package 1.1.14 for PEAR allows remote attackers to read and write arbitrary files via a crafted $from parameter, a different vector than CVE-2009-4111.

CWE-94Code Injection

How to fix

Remediation Available

php-mailDebian

Fixed in:1.1.14-2CVE-2009-4023

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.40%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch4

Vendor Advisory1

secunia.com

Other references7

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.