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Vulnerability record · CVE-2009-1227 · published 2 April 2009

CVE-2009-1227: Checkpoint firewall-1 pki web service memory buffer overflow vulnerability

Checkpoint · Firewall 1 Pki Web Service

NOTE: this issue has been disputed by the vendor. Buffer overflow in the PKI Web Service in Check Point Firewall-1 PKI Web Service allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) Authorization or (2) Referer HTTP header to TCP port 18624. NOTE: the vendor has disputed this issue, stating "Check Point Security Alert Team has analyzed this report. We've tried to reproduce the attack on all VPN-1 versions from NG FP2 and above with and without HFAs. The issue was not reproduced. We have conducted a thorough analysis of the relevant code and verified that we are secure against this attack. We consider this attack to pose no risk to Check Point customers." In addition, the original researcher, whose reliability is unknown as of 20090407, also states that the issue "was discovered during a pen-test where the client would not allow further analysis.

10.0 CVSS 2.0 High EPSS 7.2% · top 5.9% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
7.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

NOTE: this issue has been disputed by the vendor. Buffer overflow in the PKI Web Service in Check Point Firewall-1 PKI Web Service allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) Authorization or (2) Referer HTTP header to TCP port 18624. NOTE: the vendor has disputed this issue, stating "Check Point Security Alert Team has analyzed this report. We've tried to reproduce the attack on all VPN-1 versions from NG FP2 and above with and without HFAs. The issue was not reproduced. We have conducted a thorough analysis of the relevant code and verified that we are secure against this attack. We consider this attack to pose no risk to Check Point customers." In addition, the original researcher, whose reliability is unknown as of 20090407, also states that the issue "was discovered during a pen-test where the client would not allow further analysis.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2009-03/0463.html Exploit
http://www.securityfocus.com/archive/1/502256/100/0/threaded
http://www.securityfocus.com/bid/34286 Exploit
http://www.securitytracker.com/id?1021948 Exploit
https://www.exploit-db.com/exploits/8313
http://archives.neohapsis.com/archives/fulldisclosure/2009-03/0463.html Exploit
http://www.securityfocus.com/archive/1/502256/100/0/threaded
http://www.securityfocus.com/bid/34286 Exploit
http://www.securitytracker.com/id?1021948 Exploit
https://www.exploit-db.com/exploits/8313

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-1227), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.