CVE-2011-3321

CriticalCVSS 9.3/10Last modified Jun 16, 2026

Description

Heap-based buffer overflow in the Siemens WinCC Runtime Advanced Loader, as used in SIMATIC WinCC flexible Runtime and SIMATIC WinCC (TIA Portal) Runtime Advanced, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a crafted packet to TCP port 2308.

Metrics

CVSS 2.0 9.3/10AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 16, 2011
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2011-3321: Critical severity, CVSS 9.3 | Vulnix