CVE-1999-1453

Exp

Internet Explorer 4 allows remote attackers (malicious web site operators) to read the contents of the clipboard via the Internet WebBrowser ActiveX object.

Published: 1999-02-02 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-1453 is rated High Exploit Risk (64.6/100): CVSS Low severity, with high exploitation likelihood (EPSS 50.29%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +6.92% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-1453

EDB-ID Source Kind Published Link
19164 exploit_db edb 1999-01-21 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-1453

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-28 43.37% 50.29% +6.92%
2 2025-07-16 45.63% 43.37% -2.26%
3 2025-03-30 — 45.63% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-1453

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.6 2.0 LOW
AV:N/AC:H/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 4.9 2.9 [email protected]

Weakness enumeration for CVE-1999-1453

Affected software / configurations for CVE-1999-1453

Vendor Product Version Raw CPE
microsoft internet_explorer 4.0 cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:*

References for CVE-1999-1453

cvelogic Threat Intelligence