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.

CVSS 2.010.0
EPSS12.4%
Percentile96th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

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

Is this CVE in your environment?

BreachSpider monitors your ICS/OT environment for vulnerabilities like this one. No agents or network access required. Free to start.

Check My Environment →
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 Windows Nt.
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
VendorProductAffected Versions
Microsoft Windows Nt 4.0
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 10022 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash123ed39b6dfd747fdd68d275e2dde4048d670e2d6da85207654bdd3b44418d110ad644788e9f1c0da00c6abd72d6b40e09ab415514171f386003cb9adf9bb754
Related CVEs affecting Microsoft
CVE-1999-0285 10.0 Denial of service in telnet from the Windows NT Resource Kit, by opening then... CVE-2007-1070 10.0 Multiple stack-based buffer overflows in Trend Micro ServerProtect for Window... CVE-1999-0407 10.0 By default, IIS 4.0 has a virtual directory /IISADMPWD which contains files t... CVE-2009-1992 10.0 Unspecified vulnerability in the Core RDBMS component in Oracle Database 9.2.... CVE-1999-1241 10.0 Internet Explorer, with a security setting below Medium, allows remote attack...
View all Microsoft CVEs →

Critical Severity - Know Your Exposure

A CVSS 10.0 vulnerability in your ICS environment cannot wait. BreachSpider maps critical CVEs to your specific assets and tells you what to fix first.

Create a free account →