Is CVE-2011-1263 being actively exploited?

CVE-2011-1263 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-1263?

CVE-2011-1263 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2011-1263

MEDIUM · CVSS 4.3EPSS 15.2%EU EUVD

Cross-site scripting (XSS) vulnerability in the logon page in Remote Desktop Web Access (RD Web Access) in Microsoft Windows Server 2008 R2 and R2 SP1 allows remote attackers to inject arbitrary web script or HTML via the URI, aka "Remote Desktop Web Access Vulnerability."

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 15.2% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-1271)
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-2011-1271 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows server 2008

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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