Is CVE-2011-2593 being actively exploited?

CVE-2011-2593 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2593?

CVE-2011-2593 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2011-2593

MEDIUM · CVSS 6.8EPSS 4.0%EU EUVD

Integer overflow in the StartEpa method in the nsepacom ActiveX control (nsepa.exe) in Citrix Access Gateway Enterprise Edition Plug-in for Windows 9.x before 9.3-57.5 and 10.0 before 10.0-69.4 allows remote attackers to execute arbitrary code via a crafted Content-Length HTTP header, which triggers a heap-based buffer overflow.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-189
EPSS score: 4.0% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2576)
Published: August 12, 2014
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2576 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

citrix / access gateway plug-in
citrix / access gateway plug-in

References

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

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