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Vulnerability record · CVE-2007-6255 · published 23 April 2008

CVE-2007-6255: Microsoft windows 2000 memory buffer overflow vulnerability

Microsoft · Windows 2000

Buffer overflow in the Microsoft HeartbeatCtl ActiveX control in HRTBEAT.OCX allows remote attackers to execute arbitrary code via the Host argument to an unspecified method.

9.3 CVSS 2.0 High EPSS 30% · top 1.8% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in the Microsoft HeartbeatCtl ActiveX control in HRTBEAT.OCX allows remote attackers to execute arbitrary code via the Host argument to an unspecified method.

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

Affected products

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

References

LinkTags
http://osvdb.org/44652 Broken Link
http://www.kb.cert.org/vuls/id/570089 Third Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/28882 Third Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-069
https://exchange.xforce.ibmcloud.com/vulnerabilities/41940 Third Party AdvisoryVDB Entry
http://osvdb.org/44652 Broken Link
http://www.kb.cert.org/vuls/id/570089 Third Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/28882 Third Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-069
https://exchange.xforce.ibmcloud.com/vulnerabilities/41940 Third Party AdvisoryVDB Entry

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2007-6255), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.