CVE-2011-2882 EXPLOIT
9.3
HIGH · CVSS 2.0 · EPSS 56.4% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 9.3 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:C/I:C/A:C |
| EPSS | 56.37% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-07-21 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| citrix | access gateway |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Citrix Gateway - ActiveX Control Stack Buffer Overflow (Metasploit) | 2011-08-31 |
References
→ the Explorer · watch your stack · NVD