CVE-2012-5409
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly...
CVE-2012-5409 is a high vulnerability (CVSS 10.0) in Siemens Sipass Integrated, published November 1, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 15.8%, the 96th percentile. No source names a fixed version.
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.
Exploit likelihood
What each source reports
NVD Score used
10.0
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.
- Record
CVE-2012-5409- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.
- Record
CVE-2012-5409- Updated
- 2026-11-02
EUVDEUVD-2012-5328 No score
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.
- Record
EUVD-2012-5328- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q4x4-498h-293w No score
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly...
AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.
- Record
GHSA-q4x4-498h-293w- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | SIEMENS Sipass Integrated 2.6 Ethernet Bus - Arbitrary Pointer Dereference | 2012-11-01 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, NVD |
References
secunia.com/advisories/50900
ics-cert.us-cert.gov/advisories/ICSA-12-305-01
osvdb.org/86129
siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-938777.pdf
ioactive.com/pdfs/SIEMENS_Sipass_Integrated_Ethernet_Bus_Arbitrary_Pointer_Dereference_V4.pdf
nvd.nist.gov/vuln/detail/CVE-2012-5409
github.com/advisories/GHSA-q4x4-498h-293w