CVE-2004-0978
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5...
CVE-2004-0978 is a high vulnerability (CVSS 10.0) in Microsoft Internet Explorer, published October 21, 2004. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 38.3%, the 98th percentile. No source names a fixed version.
- Severity
- 10.0 HighCVSS 2.0, NVD
- Exploit chance
- 38.3%EPSS, 98th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.
Exploit likelihood
Affected products
What each source reports
NVD Score used
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.
- Record
CVE-2004-0978- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE ListNo score
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.
- Record
CVE-2004-0978- Updated
- 2026-11-02
EUVDEUVD-2004-0976No score
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.
- Record
EUVD-2004-0976- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h49w-j46g-48x6No score
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5...
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.
- Record
GHSA-h49w-j46g-48x6- Weakness
- CWE-787
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
marc.info?l=bugtraq&m=110616221411579&w=2
kb.cert.org/vuls/id/673134
docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-038
exchange.xforce.ibmcloud.com/vulnerabilities/17714
securityfocus.com/bid/11367
ngssoftware.com/advisories/heartbeatfull.txt
nvd.nist.gov/vuln/detail/CVE-2004-0978
github.com/advisories/GHSA-h49w-j46g-48x6