CVE-2011-2882

Name: CVE-2011-2882
Creator: NVD / NIST
Published: 2011-07-21T23:55:04.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 56.37%

Last modified Jun 16, 2026

CVE-2011-2882 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 56.37% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

56.37%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Citrix	Access Gateway	8.1
Citrix	Access Gateway	9.0
Citrix	Access Gateway	9.1

References

Timeline

Published: Jul 21, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2882?

How severe is CVE-2011-2882?

Severity scoring for CVE-2011-2882 is pending analysis. The EPSS model estimates a 56.37% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2882?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2882?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST