Security readout for executives and security teams
This flaw affects an old Citrix Access Gateway Enterprise Edition ActiveX component. A remote attacker could trigger a stack buffer overflow using crafted HTTP header data and potentially run code. The sources identify fixed build levels, but provide no CVSS score and no evidence of active exploitation. Exposure is most likely in environments retaining legacy Citrix Access Gateway Enterprise Edition 8.1, 9.0, or 9.1 deployments and clients that load the vulnerable nsepa.ocx ActiveX control. Modern environments that retired this product line or no longer deploy the control are less likely exposed. Treat this as high priority only where legacy Citrix Access Gateway Enterprise Edition remains in use. The business risk is remote code execution through a client-side ActiveX component, but evidence is old and incomplete. Prioritize inventory, upgrade verification, and retirement planning for unsupported deployments. Mitigation focus: Upgrade 8.1 deployments to 8.1-67.7 or later.; Upgrade 9.0 deployments to 9.0-70.5 or later.; Upgrade 9.1 deployments to 9.1-96.4 or later..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Execution behavior lookup
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Open ATT&CK lookupCVE-2011-2882 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
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