CVE-2004-0978 in the critical feed json
Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online…
published 2004-10-21 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0976
- cvss
- 10.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 38.3%
- EPSS 38.3% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
38.31% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2004/ms04-038
vendor-advisory, patch
-
marc.info
/?l=bugtraq&m=110616221411579&w=2
mailing-list, issue-tracking, third-party-advisory
-
kb.cert.org
/vuls/id/673134
third-party-advisory, us-government-resource
-
exchange.xforce.ibmcloud.com
/vulnerabilities/17714
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/11367
vdb-entry, third-party-advisory
-
ngssoftware.com
/advisories/heartbeatfull.txt
broken-link
Sources
- CVE List CVE-2004-0978
- NVD CVE-2004-0978
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