Buffer overflow in Siemens Simatic_pcs

CVE-2021-31893

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 (con…

Vulnerability class: Buffer Overflow

EPSS: 0.006 (43.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-31893?
CVE-2021-31893 is a high-severity vulnerability in Siemens Simatic_pcs, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2021-07-13.
How severe is CVE-2021-31893?
High severity. CVSS v3 base score is 7.8 out of 10.