CVE-2011-1871
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."
Key facts
- CVSS score
- 7.8 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C- Weakness (CWE)
- CWE-399
- EPSS score
- 38.5% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1869)
- Published
- August 10, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1869 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / windows 7
- microsoft / windows 7
- microsoft / windows 7
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows vista
Certified products that may be affected
14 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Windows 7 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1332 - historical
- Microsoft Windows 7 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1328 - historical
- Microsoft Windows Vista Kernel Mode Security Support Provider Interface (ksecdd.sys) - Microsoft Corporation - FIPS 140 1000 - historical
- Microsoft Windows Vista Cryptographic Primitives Library (bcrypt.dll) - Microsoft Corporation - FIPS 140 1001 - historical
- Windows Vista Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1002 - historical
See all 14 in the Security Certifications Explorer.
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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