Is CVE-2011-2882 being actively exploited?

CVE-2011-2882 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2882?

CVE-2011-2882 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2011-2882

HIGH · CVSS 9.3EPSS 56.4%EU EUVD

Stack-based buffer overflow in the NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 allows remote attackers to execute arbitrary code via crafted HTTP header data.

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-119
EPSS score: 56.4% (99th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2856)
Published: July 21, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2856 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

citrix / access gateway
citrix / access gateway
citrix / access gateway

References

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

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