CVEvulnerability

CVE-2021-31893

7.8 HIGH Published 2021-07-13 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-120

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.

Affected configurations

• siemens simatic pcs firmware (<= 8.2) • siemens simatic pcs firmware 9.0 • siemens simatic pdm firmware (< 9.2) • siemens simatic step 7 firmware (<= 5.6) • siemens sinamics starter firmware (< 5.4) • siemens sinamics starter firmware 5.4

Related

Weakness · CWE (1)

  • CWE-120 Buffer Copy without Checking Size of Input weakness

References