Security readout for executives and security teams
This old CVE describes a privacy exposure in Internet Explorer 4: a malicious website could read whatever text was currently on a user’s clipboard. Business impact depends on whether any legacy systems still use IE4 or its WebBrowser ActiveX component. The sources do not provide a modern severity score or vendor fix details. Likely exposure is limited to obsolete environments still running Internet Explorer 4 or software embedding the affected WebBrowser ActiveX behavior. The CVE metadata does not identify supported products, CPEs, or affected versions beyond Internet Explorer 4. Low for modern environments unless legacy IE4 or embedded ActiveX dependencies remain. Treat confirmed exposure as a data-leakage risk because clipboard content can contain passwords, tokens, customer data, or operational notes. Mitigation focus: Inventory systems for Internet Explorer 4 or embedded IE4 WebBrowser ActiveX use.; Retire or isolate obsolete IE4-dependent systems wherever operationally possible.; Avoid using affected legacy browsers for untrusted web content..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-1999-1453 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
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