Is CVE-2011-1869 in the CISA KEV catalog?

No. CVE-2011-1869 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1869?

CVE-2011-1869 has a CVSS v2 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2011-1869?

CVE-2011-1869 has an EPSS score of 10.29% (95th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-1869

HIGHEPSS 95th pctl

7.8

CVSS v2

NVD

Description

The Distributed File System (DFS) implementation in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote DFS servers to cause a denial of service (system hang) via a crafted referral response, aka "DFS Referral Response Vulnerability."

CWE-399

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

10.29%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.