CVE-2009-4023

Exp

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.

Published: 2009-11-29 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4023 is rated High Exploit Risk (72.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.40%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-4023

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4023

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.14% 2.40% -0.73%
2 2025-03-30 6.64% 3.14% -3.50%
3 2025-03-29 — 6.64% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4023

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2009-4023

OS Trackers for CVE-2009-4023

vendor priority summary link
debian medium CVE-2009-4023 medium priority: Debian including 1 source packages (php-mail), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-4023
gentoo high CVE-2009-4023: 1 GLSA(s) (201412-09), 25 atom(s) (app-admin/syslog-ng, app-misc/ca-certificates, …); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-4023
redhat high — https://access.redhat.com/security/cve/CVE-2009-4023
ubuntu medium CVE-2009-4023 medium priority: Ubuntu including 1 source packages (php-mail), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): released 5, needs-triage 1. https://ubuntu.com/security/CVE-2009-4023

Affected software / configurations for CVE-2009-4023

Vendor Product Version Raw CPE
pear pear 1.1.14 cpe:2.3:a:pear:pear:1.1.14:*:*:*:*:*:*:*

References for CVE-2009-4023

cvelogic Threat Intelligence