CVE-2009-4024
CVE-2009-4024 is a critical-severity vulnerability in Pear with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 2.0 base score 10.0)
- EPSS exploit prediction: 6% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Pear
- Published:
- Last modified:
Description
Argument injection vulnerability in the ping function in Ping.php in the Net_Ping package before 2.4.5 for PEAR allows remote attackers to execute arbitrary shell commands via the host parameter. NOTE: this has also been reported as a shell metacharacter problem.
Frequently asked questions
- What is CVE-2009-4024?
- Argument injection vulnerability in the ping function in Ping.php in the Net_Ping package before 2.4.5 for PEAR allows remote attackers to execute arbitrary shell commands via the host parameter. NOTE: this has also been reported as a shell metacharacter problem.
- How severe is CVE-2009-4024?
- CVE-2009-4024 has a CVSS 2.0 base score of 10.0, rated critical severity.
- Is CVE-2009-4024 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-4024?
- CVE-2009-4024 primarily affects Pear. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-4024?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2009-4024 published?
- CVE-2009-4024 was published on 2009-11-29 and last updated on 2026-06-16.
References
- http://blog.pear.php.net/2009/11/14/net_traceroute-and-net_ping-security-advisory/
- http://pear.php.net/advisory20091114-01.txt
- http://pear.php.net/package/Net_Ping/download/2.4.5
- http://secunia.com/advisories/37451
- http://secunia.com/advisories/37502
- http://svn.php.net/viewvc/pear/packages/Net_Ping/trunk/Ping.php?r1=274728&r2=290669&pathrev=290669
- http://www.debian.org/security/2009/dsa-1949
- http://www.securityfocus.com/bid/37093
- http://www.vupen.com/english/advisories/2009/3320
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54390
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg01044.html
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg01130.html
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg01152.html
Affected products (11)
- cpe:2.3:a:pear:pear:*:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:0.1:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.1:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.2:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.3:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.4:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:pear:pear:2.4.3:*:*:*:*:*:*:*
More vulnerabilities in Pear
- CVE-2009-4025 — Critical (CVSS 10.0): Argument injection vulnerability in the traceroute function in Traceroute.php in the Net_Traceroute package before…
- CVE-2009-4023 — High (CVSS 7.5): Argument injection vulnerability in the sendmail implementation of the Mail::Send method (Mail/sendmail.php) in the…
Other CWE-94 (Code Injection) vulnerabilities
- CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
- CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
- CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
- CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
- CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
- CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.