CVE-2021-31893

Summary

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

Affected Software

VendorProductVersion RangeStatus
SiemensSIMATIC PCS 7 V8.2 and earlierAll versionsaffected
SiemensSIMATIC PCS 7 V9.0All versions < V9.0 SP3affected
SiemensSIMATIC PDMAll versions < V9.2affected
SiemensSIMATIC STEP 7 V5.XAll versions < V5.6 SP2 HF3affected
SiemensSINAMICS STARTER (containing STEP 7 OEM version)All versions < V5.4 HF2affected

Weaknesses

  • CWE-120: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

ADP Enrichment

CVE Program Container

Additional References

References