CVE-2020-7581

A vulnerability has been identified in Opcenter Execution Discrete (All versions < V3.2), Opcenter Execution Foundation (All versions < V3.2), Opcenter Execution Process (All versions < V3.2), Opcenter Intelligence (All versions < V3.3), Opcenter Quality (All versions < V11.3), Opcenter RD&L (V8.0), SIMATIC Notifier Server for Windows (All versions), SIMATIC PCS neo (All versions < V3.0 SP1), SIMATIC STEP 7 (TIA Portal) V15 (All versions < V15.1 Update 5), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 2), SIMOCODE ES V15.1 (All versions < V15.1 Update 4), SIMOCODE ES V16 (All versions < V16 Update 1), Soft Starter ES V15.1 (All versions < V15.1 Update 3), Soft Starter ES V16 (All versions < V16 Update 1). A component within the affected application calls a helper binary with SYSTEM privileges during startup while the call path is not quoted. This could allow a local attacker with administrative privileges to execute code with SYSTEM level privileges.

Published: 2020-07-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-7581 is rated Low Risk (37.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.38%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-7581

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.38% +0.33%
2 2025-03-30 0.09% 0.05% -0.05%
3 2025-03-29 — 0.09% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-7581

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2020-7581

Affected software / configurations for CVE-2020-7581

Vendor Product Version Raw CPE
siemens opcenter_execution_discrete < 3.2 cpe:2.3:a:siemens:opcenter_execution_discrete:*:*:*:*:*:*:*:*
siemens opcenter_execution_foundation < 3.2 cpe:2.3:a:siemens:opcenter_execution_foundation:*:*:*:*:*:*:*:*
siemens opcenter_execution_process < 3.2 cpe:2.3:a:siemens:opcenter_execution_process:*:*:*:*:*:*:*:*
siemens opcenter_intelligence — cpe:2.3:a:siemens:opcenter_intelligence:*:*:*:*:*:*:*:*
siemens opcenter_quality < 11.3 cpe:2.3:a:siemens:opcenter_quality:*:*:*:*:*:*:*:*
siemens opcenter_rd\&l 8.0 cpe:2.3:a:siemens:opcenter_rd\&l:8.0:*:*:*:*:*:*:*
siemens simatic_notifier_server — cpe:2.3:a:siemens:simatic_notifier_server:*:*:*:*:*:windows:*:*
siemens simatic_pcs_neo — cpe:2.3:a:siemens:simatic_pcs_neo:*:*:*:*:*:*:*:*
siemens simatic_step_7 < 16 cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*
siemens simatic_step_7 16 cpe:2.3:a:siemens:simatic_step_7:16:-:*:*:*:*:*:*
siemens simatic_step_7 16 cpe:2.3:a:siemens:simatic_step_7:16:update1:*:*:*:*:*:*
siemens simocode_es — cpe:2.3:a:siemens:simocode_es:*:*:*:*:*:*:*:*
siemens soft_starter_es — cpe:2.3:a:siemens:soft_starter_es:*:*:*:*:*:*:*:*

References for CVE-2020-7581

cvelogic Threat Intelligence