CVE-1999-0489

CRITICAL

MSHTML.DLL in Internet Explorer 5.0 allows a remote attacker to paste a file name into the file upload intrinsic control, a variant of "untrusted scripted paste" as described in MS:MS98-013.

Affects 1 product across 1 vendor.

BCS7.9
CVSS 2.010.0
EPSS12.4%
Percentile96th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ SAGE Intelligence — CITED Relevance Research Team

This vulnerability was disclosed in 1999. A critical vulnerability affects Microsoft systems (CVE-1999-0489). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-1999-GLOBAL-307886-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-1999-0489?
This vulnerability was disclosed in 1999. A critical vulnerability affects Microsoft systems (CVE-1999-0489). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-1999-0489?
CVE-1999-0489 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 12.4%.
Is CVE-1999-0489 actively exploited?
No confirmed active exploitation of CVE-1999-0489 as of 2026-06-20.
How do I remediate CVE-1999-0489?
Priority: MEDIUM.
What systems are affected by CVE-1999-0489?
CVE-1999-0489 affects: Microsoft.
Vulnerability Details
CVE IDCVE-1999-0489
BSIDBS-1999-GLOBAL-307886-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published1999-05-17
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

MSHTML.DLL in Internet Explorer 5.0 allows a remote attacker to paste a file name into the file upload intrinsic control, a variant of "untrusted scripted paste" as described in MS:MS98-013.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: MSHTML.DLL in Internet Explorer 5.0 allows a remote attacker to paste a file name into the file upload intrinsic control, a variant of "untrusted scripted paste" as described in MS:MS98-013. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductFixed Version
Microsoft Windows Nt —
Remediation

No patch URL on record. Monitor vendor security advisories directly.

Threat Intelligence
● Threat Intelligence Validated: August 2026 | Threat Age: 9941 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash123ed39b6dfd747fdd68d275e2dde4048d670e2d6da85207654bdd3b44418d110ad644788e9f1c0da00c6abd72d6b40e09ab415514171f386003cb9adf9bb754
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