Security readout for executives and security teams
This is an old Citrix Access Gateway Enterprise Edition client-side issue. A vulnerable ActiveX control could trust a DLL based on certificate subject text rather than a valid signature, letting a man-in-the-middle attacker run code on a user’s Windows client in the right conditions. Likely exposure is limited to legacy Citrix Access Gateway Enterprise Edition deployments using the NSEPA ActiveX control on Windows clients. The structured affected-product data in the bundle is incomplete, so exposure must be confirmed from deployed Citrix versions, client components, and whether nsepa.ocx is still in use. Treat this as high priority if any legacy Citrix Access Gateway ActiveX clients remain. The business risk is remote code execution on user endpoints through trusted remote-access infrastructure. If the product is retired, confirm with evidence and close as not applicable. Mitigation focus: Upgrade affected Citrix Access Gateway Enterprise Edition builds to fixed versions or later.; Remove or disable the vulnerable NSEPA ActiveX workflow where it is no longer required.; Confirm remediation against Citrix guidance before relying on compensating controls..
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-2011-2883 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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