CVE-2020-7587

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 IT LMS (All versions < V2.6), SIMATIC IT Production Suite (All versions < 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). Sending multiple specially crafted packets to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself. On some cases the vulnerability could leak random information from the remote service.

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-2020-7587 is rated Moderate Risk (63.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.48%). EPSS rose +1.99% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-2020-7587

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 0.50% 2.48% +1.99%
2 2025-07-16 0.40% 0.50% +0.10%
3 2025-03-30 — 0.40% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-7587

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
No account or special rights needed—anonymous or random user is enough.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 4.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2020-7587

Affected software / configurations for CVE-2020-7587

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 < 3.3 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_it_lms < 2.6 cpe:2.3:a:siemens:simatic_it_lms:*:*:*:*:*:*:*:*
siemens simatic_it_production_suite < 8.0 cpe:2.3:a:siemens:simatic_it_production_suite:*:*:*:*:*:*:*:*
siemens simatic_notifier_server — cpe:2.3:a:siemens:simatic_notifier_server:*:*:*:*:*:windows:*:*
siemens simatic_pcs_neo < 3.0 cpe:2.3:a:siemens:simatic_pcs_neo:*:*:*:*:*:*:*:*
siemens simatic_pcs_neo 3.0 cpe:2.3:a:siemens:simatic_pcs_neo:3.0:-:*:*:*:*:*:*
siemens simatic_step_7 >= 15, < 15.1 cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*
siemens simatic_step_7 15.1 cpe:2.3:a:siemens:simatic_step_7:15.1:-:*:*:*:*:*:*
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 < 15.1 cpe:2.3:a:siemens:simocode_es:*:*:*:*:*:*:*:*
siemens simocode_es 15.1 cpe:2.3:a:siemens:simocode_es:15.1:-:*:*:*:*:*:*
siemens simocode_es 16 cpe:2.3:a:siemens:simocode_es:16:-:*:*:*:*:*:*
siemens soft_starter_es < 15.1 cpe:2.3:a:siemens:soft_starter_es:*:*:*:*:*:*:*:*
siemens soft_starter_es 15.1 cpe:2.3:a:siemens:soft_starter_es:15.1:-:*:*:*:*:*:*

References for CVE-2020-7587

cvelogic Threat Intelligence