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TI-2011-02937 Aliases CVE-2011-3321GHSA-3gp6-fj2v-m5f7

Heap-based buffer overflow in the Siemens WinCC Runtime Advanced Loader, as used in…

Priority MEDIUM 50CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.0707 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:siemens:simatic_wincc_flexible_runtime:*:*:*:*:*:*:*:*all versionsVulnerableSiemens
cpe:2.3:a:siemens:simatic_wincc_runtime:-:*:*:*:advanced:*:*:*not specified by NVDVulnerableSiemens
  • cpe:2.3:a:siemens:simatic_wincc_flexible_runtime:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens
  • cpe:2.3:a:siemens:simatic_wincc_runtime:-:*:*:*:advanced:*:*:* Versions not specified by NVD Vulnerable ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-3321
  2. 2026-10-03 Alias added: GHSA-3gp6-fj2v-m5f7

References

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences