← Back

Windows 98

windows_98

Vendor: Microsoft • 87 CVEs

CVEs (87)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
7Windows 2000
Windows 2003 ServerWindows 98+4 more
Apr 16, 2026
Aug 7, 2003
N/A· v4
N/A· v3
7.5 HIGH· v2
Buffer overflow in the HTML Converter (HTML32.cnv) on various Windows operating systems allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via cut-and-paste operation, as dem...Show more
Buffer overflow in the HTML Converter (HTML32.cnv) on various Windows operating systems allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via cut-and-paste operation, as demonstrated in Internet Explorer 5.0 using a long "align" argument in an HR tag.Show less
1Microsoft
7Windows 2000
Windows 2000 Terminal ServicesWindows 98+4 more
Apr 16, 2026
Mar 24, 2003
N/A· v4
N/A· v3
7.5 HIGH· v2
Integer overflow in JsArrayFunctionHeapSort function used by Windows Script Engine for JScript (JScript.dll) on various Windows operating system allows remote attackers to execute arbitrary code via a malicious web page...Show more
Integer overflow in JsArrayFunctionHeapSort function used by Windows Script Engine for JScript (JScript.dll) on various Windows operating system allows remote attackers to execute arbitrary code via a malicious web page or HTML e-mail that uses a large array index value that enables a heap-based buffer overflow attack.Show less
6Debian
MandrakesoftMicrosoft+3 more
11Debian Linux
Enterprise LinuxEnterprise Linux Desktop+8 more
Apr 16, 2026
Dec 31, 2002
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The Internet Group Management Protocol (IGMP) allows local users to cause a denial of service via an IGMP membership report to a target's Ethernet address instead of the Multicast group address, which causes the target t...Show more
The Internet Group Management Protocol (IGMP) allows local users to cause a denial of service via an IGMP membership report to a target's Ethernet address instead of the Multicast group address, which causes the target to stop sending reports to the router and effectively disconnect the group from the network.Show less
1Microsoft
8Windows 2000
Windows 2000 Terminal ServicesWindows 95+5 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Microsoft Virtual Machine (VM) build 5.0.3805 and earlier allows remote attackers to determine a local user's username via a Java applet that accesses the user.dir system property, aka "User.dir Exposure Vulnerability."
1Microsoft
8Windows 2000
Windows 2000 Terminal ServicesWindows 95+5 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
The Java Database Connectivity (JDBC) APIs in Microsoft Virtual Machine (VM) 5.0.3805 and earlier allow remote attackers to bypass security checks and access database contents via an untrusted Java applet.
1Microsoft
8Windows 2000
Windows 2000 Terminal ServicesWindows 95+5 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Two vulnerabilities in Microsoft Virtual Machine (VM) up to and including build 5.0.3805, as used in Internet Explorer and other applications, allow remote attackers to read files via a Java applet with a spoofed locatio...Show more
Two vulnerabilities in Microsoft Virtual Machine (VM) up to and including build 5.0.3805, as used in Internet Explorer and other applications, allow remote attackers to read files via a Java applet with a spoofed location in the CODEBASE parameter in the APPLET tag, possibly due to a parsing error.Show less
1Microsoft
8Windows 2000
Windows 2000 Terminal ServicesWindows 95+5 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
10.0 HIGH· v2
Microsoft Virtual Machine (VM) up to and including build 5.0.3805 allows remote attackers to execute arbitrary code by including a Java applet that invokes COM (Component Object Model) objects in a web site or an HTML ma...Show more
Microsoft Virtual Machine (VM) up to and including build 5.0.3805 allows remote attackers to execute arbitrary code by including a Java applet that invokes COM (Component Object Model) objects in a web site or an HTML mail.Show less
1Microsoft
3Windows 98
Windows 98seWindows Nt
Apr 16, 2026
Dec 11, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Microsoft Windows 98 and Windows NT 4.0 do not properly verify the Basic Constraints of digital certificates, allowing remote attackers to execute code, aka "New Variant of Certificate Validation Flaw Could Enable Identi...Show more
Microsoft Windows 98 and Windows NT 4.0 do not properly verify the Basic Constraints of digital certificates, allowing remote attackers to execute code, aka "New Variant of Certificate Validation Flaw Could Enable Identity Spoofing" (CAN-2002-0862).Show less
1Microsoft
7Windows 2000
Windows 2000 Terminal ServicesWindows 98+4 more
Apr 16, 2026
Oct 10, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
The HTML Help facility in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP uses the Local Computer Security Zone when opening .chm files fr...Show more
The HTML Help facility in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP uses the Local Computer Security Zone when opening .chm files from the Temporary Internet Files folder, which allows remote attackers to execute arbitrary code via HTML mail that references or inserts a malicious .chm file containing shortcuts that can be executed, aka "Code Execution via Compiled HTML Help File."Show less
1Microsoft
7Windows 2000
Windows 2000 Terminal ServicesWindows 98+4 more
Apr 16, 2026
Oct 10, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Buffer overflow in the HTML Help ActiveX Control (hhctrl.ocx) in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP allows remote attackers t...Show more
Buffer overflow in the HTML Help ActiveX Control (hhctrl.ocx) in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP allows remote attackers to execute code via (1) a long parameter to the Alink function, or (2) script containing a long argument to the showHelp function.Show less
1Microsoft
9Internet Explorer
OfficeOutlook Express+6 more
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
6.8 MEDIUM· v2
The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer...Show more
The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.Show less
1Microsoft
6Windows 2000
Windows 98Windows 98se+3 more
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Unknown vulnerability in the Certificate Enrollment ActiveX Control in Microsoft Windows 98, Windows 98 Second Edition, Windows Millennium, Windows NT 4.0, Windows 2000, and Windows XP allow remote attackers to delete di...Show more
Unknown vulnerability in the Certificate Enrollment ActiveX Control in Microsoft Windows 98, Windows 98 Second Edition, Windows Millennium, Windows NT 4.0, Windows 2000, and Windows XP allow remote attackers to delete digital certificates on a user's system via HTML.Show less
1Microsoft
4Windows 2000
Windows 98Windows 98se+1 more
Apr 16, 2026
Mar 15, 2002
N/A· v4
N/A· v3
7.6 HIGH· v2
Buffer overflow in Windows Shell (used as the Windows Desktop) allows local and possibly remote attackers to execute arbitrary code via a custom URL handler that has not been removed for an application that has been impr...Show more
Buffer overflow in Windows Shell (used as the Windows Desktop) allows local and possibly remote attackers to execute arbitrary code via a custom URL handler that has not been removed for an application that has been improperly uninstalled.Show less
1Microsoft
6Windows 2000
Windows 95Windows 98+3 more
Apr 16, 2026
Mar 8, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Buffer overflow in SNMP agent service in Windows 95/98/98SE, Windows NT 4.0, Windows 2000, and Windows XP allows remote attackers to cause a denial of service or execute arbitrary code via a malformed management request....Show more
Buffer overflow in SNMP agent service in Windows 95/98/98SE, Windows NT 4.0, Windows 2000, and Windows XP allows remote attackers to cause a denial of service or execute arbitrary code via a malformed management request. NOTE: this candidate may be split or merged with other candidates. This and other PROTOS-related candidates, especially CVE-2002-0012 and CVE-2002-0013, will be updated when more accurate information is available.Show less
1Microsoft
4Windows 98
Windows 98seWindows Me+1 more
Apr 16, 2026
Dec 20, 2001
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service via (1) a spoofed SSDP advertisement that causes the client to connect to a service on another machine t...Show more
Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service via (1) a spoofed SSDP advertisement that causes the client to connect to a service on another machine that generates a large amount of traffic (e.g., chargen), or (2) via a spoofed SSDP announcement to broadcast or multicast addresses, which could cause all UPnP clients to send traffic to a single target system.Show less
1Microsoft
4Windows 98
Windows 98seWindows Me+1 more
Apr 16, 2026
Dec 20, 2001
N/A· v4
N/A· v3
7.5 HIGH· v2
Buffer overflow in Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to execute arbitrary code via a NOTIFY directive with a long Location URL.
1Microsoft
4Windows 98
Windows 98seWindows Me+1 more
Apr 16, 2026
Dec 6, 2001
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Universal Plug and Play (UPnP) in Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service (memory consumption or crash) via a malformed UPnP request.
1Microsoft
2Windows 98
Windows 98se
Apr 16, 2026
Jul 30, 2001
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The Microsoft Windows network stack allows remote attackers to cause a denial of service (CPU consumption) via a flood of malformed ARP request packets with random source IP and MAC addresses, as demonstrated by ARPNuke.
1Microsoft
6Windows 2000
Windows 95Windows 98+3 more
Apr 16, 2026
Jul 2, 2001
N/A· v4
N/A· v3
7.5 HIGH· v2
Microsoft Data Access Component Internet Publishing Provider 8.103.2519.0 and earlier allows remote attackers to bypass Security Zone restrictions via WebDAV requests.
1Microsoft
2Windows 2000
Windows 98
Apr 16, 2026
May 3, 2001
N/A· v4
N/A· v3
2.6 LOW· v2
Windows 98 and Windows 2000 Java clients allow remote attackers to cause a denial of service via a Java applet that opens a large number of UDP sockets, which prevents the host from establishing any additional UDP connec...Show more
Windows 98 and Windows 2000 Java clients allow remote attackers to cause a denial of service via a Java applet that opens a large number of UDP sockets, which prevents the host from establishing any additional UDP connections, and possibly causes a crash.Show less