CVE-2021-31893 - CVE House
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Status published High CVE-2021-31893

A vulnerability has been identified in SIMATIC PCS 7 V8.2...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

SIMATIC PCS 7 V8.2 and earlier, SIMATIC PCS 7 V9.0, SIMATIC PDM, SIMATIC STEP 7 V5.X, SINAMICS STARTER (containing STEP 7 OEM version)
Vulnerable Versions:
All versions, All versions < V9.0 SP3, All versions < V9.2, All versions < V5.6 SP2 HF3, All versions < V5.4 HF2

Timeline

Official Publish: July 13th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)