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01 Record

CVE-2004-0978

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

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
38.31% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.4% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2004-10-21 04:00Z22 YR AGO
Last updated
2024-08-08 00:39Z2 YR AGO
Reserved
2004-10-20
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
cf7d5d8ec0be496bd63b9f42f39f0f0480a712bef13a0077ac4b212231a12518

05 Affected products

VendorProductVersionsPlatforms
microsoftinternet_explorerNot specified—
microsoftwindows_2000Not specified—
microsoftwindows_98seNot specified—
microsoftwindows_meNot specified—
microsoftwindows_ntNot specified—
microsoftwindows_server_2003Not specified—
microsoftwindows_xpNot specified—

06 References