CVE-2001-0877
CVE-2001-0877 is a medium-severity vulnerability in Microsoft Windows 98 with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 44% places it in the 99th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 44% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows 98
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2001-0877?
- 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.
- How severe is CVE-2001-0877?
- CVE-2001-0877 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2001-0877 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 44% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2001-0877?
- CVE-2001-0877 primarily affects Microsoft Windows 98. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2001-0877?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2001-0877 published?
- CVE-2001-0877 was published on 2001-12-20 and last updated on 2026-06-16.
References
- http://marc.info/?l=bugtraq&m=100887440810532&w=2
- http://marc.info/?l=ntbugtraq&m=100887271006313&w=2
- http://www.cert.org/advisories/CA-2001-37.html
- http://www.ciac.org/ciac/bulletins/m-030.shtml
- http://www.kb.cert.org/vuls/id/411059
- http://www.securityfocus.com/archive/1/249238
- http://www.securityfocus.com/bid/3724
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-059
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7722
Affected products (4)
- cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_me:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:gold:*:*:*:*:*:*
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