CVE-2011-1871 in the critical feed json
Tcpip.sys in the TCP/IP stack in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows re…
published 2011-08-10 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1869
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 38.5%
- EPSS 38.5% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
Tcpip.sys in the TCP/IP stack in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to cause a denial of service (reboot) via a series of crafted ICMP messages, aka "ICMP Denial of Service Vulnerability."
Exploit prediction
38.46% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2011/ms11-064
vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12971
vdb-entry, signature
-
us-cert.gov
/cas/techalerts/TA11-221A.html
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2011-1871
- NVD CVE-2011-1871
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.