CVE-2021-31893

2021-07-1311:02:56

CWE-120

siemens

www.cve.org

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.6%

JSON

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.

CNA Affected

[
  {
    "product": "SIMATIC PCS 7 V8.2 and earlier",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC PCS 7 V9.0",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V9.0 SP3"
      }
    ]
  },
  {
    "product": "SIMATIC PDM",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V9.2"
      }
    ]
  },
  {
    "product": "SIMATIC STEP 7 V5.X",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V5.6 SP2 HF3"
      }
    ]
  },
  {
    "product": "SINAMICS STARTER (containing STEP 7 OEM version)",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V5.4 HF2"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf