CVE-2011-4520
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows...
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
Exploit likelihood
What each source reports
NVD Score used
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
- Record
CVE-2011-4520- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
- Record
CVE-2011-4520- Updated
- 2026-11-02
EUVDEUVD-2011-4446 No score
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
- Record
EUVD-2011-4446- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-92hc-v7h5-rqc5 No score
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows...
Heap-based buffer overflow in an ActiveX component in MICROSYS PROMOTIC before 8.1.5 allows remote attackers to cause a denial of service via a crafted web page.
- Record
GHSA-92hc-v7h5-rqc5- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Microsys PROMOTIC 8.1.4 - ActiveX GetPromoticSite Unitialized Pointer | 2011-10-13 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-4520 is a medium vulnerability (CVSS 4.3) in Microsys Promotic, published May 23, 2013. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.37%, the 83rd percentile. No source names a fixed version.