CVE-2020-8745 Vulnerability Analysis & Exploit Details

CVE-2020-8745
Vulnerability Scoring

6.8
/10
High Risk

If left unpatched, CVE-2020-8745 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Physical
    Physical access is required to exploit this vulnerability.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2020-8745 Details

Status: Analyzed

Last updated: 🕒 28 Mar 2025, 15:19 UTC
Originally published on: 🕕 12 Nov 2020, 18:15 UTC

Time between publication and last update: 1596 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-8745 Vulnerability Summary

CVE-2020-8745: Insufficient control flow management in subsystem for Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25 , Intel(R) TXE versions before 3.1.80 and 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Assessing the Risk of CVE-2020-8745

Access Complexity Graph

The exploitability of CVE-2020-8745 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2020-8745

With low attack complexity and no required privileges, CVE-2020-8745 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-8745, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2020-8745, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2020-8745 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2020-8745 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2020-8745 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.117% (probability of exploit)

EPSS Percentile: 47.38% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 52.62% of others.

CVE-2020-8745 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:a:intel:converged_security_and_manageability_engine:-:*:*:*:*:*:*:*
    cpe:2.3:a:intel:converged_security_and_manageability_engine:-:*:*:*:*:*:*:*
  • cpe:2.3:a:intel:trusted_execution_technology:3.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:intel:trusted_execution_technology:3.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:intel:trusted_execution_technology:3.1.65:*:*:*:*:*:*:*
    cpe:2.3:a:intel:trusted_execution_technology:3.1.65:*:*:*:*:*:*:*
  • cpe:2.3:a:intel:trusted_execution_technology:4.0:*:*:*:*:*:*:*
    cpe:2.3:a:intel:trusted_execution_technology:4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:intel:trusted_execution_technology:4.0.15:*:*:*:*:*:*:*
    cpe:2.3:a:intel:trusted_execution_technology:4.0.15:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_drive_controller_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_drive_controller_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_drive_controller:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_drive_controller:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_et200sp_1515sp_pc2:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_et200sp_1515sp_pc2:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.01:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.01:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.02:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.02:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.03:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.03:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.04:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.04:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.05:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.05:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:22.01.06:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc127e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc127e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc127e_firmware:21.01.07:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc127e_firmware:21.01.07:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.03:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.03:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.05:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.05:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.06:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.07:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.07:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.08:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.08:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.09:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.09:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.14:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.14:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.15:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc427e_firmware:21.01.15:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.03:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.03:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.05:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.05:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.06:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.07:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.07:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.08:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.08:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.09:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.09:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.14:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc477e_firmware:21.01.14:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc527g_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc527g_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc527g:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc527g:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc547g_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc547g_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc547g_firmware:r1.23.0:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc547g_firmware:r1.23.0:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc547g_firmware:r1.28.0:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc547g_firmware:r1.28.0:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc547g:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc547g:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc627e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc627e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc627e_firmware:25.02.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc627e_firmware:25.02.06:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc647e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc647e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc647e_firmware:25.02.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc647e_firmware:25.02.06:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc667e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc667e:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc847e_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc847e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_ipc847e_firmware:25.02.06:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_ipc847e_firmware:25.02.06:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_itp1000_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_itp1000_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:simatic_itp1000_firmware:23.01.04:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:simatic_itp1000_firmware:23.01.04:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_828d_hw_pu.4:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_828d_hw_pu.4:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_mc_mcu_1720:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_mc_mcu_1720:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:sinumerik_one_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:sinumerik_one_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_one:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_one:-:*:*:*:*:*:*:*
  • cpe:2.3:o:siemens:sinumerik_840d_sl_ht_10_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:siemens:sinumerik_840d_sl_ht_10_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_840d_sl_ht_10:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_840d_sl_ht_10:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_one_ncu_1740:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_one_ncu_1740:-:*:*:*:*:*:*:*
  • cpe:2.3:h:siemens:sinumerik_one_ppu_1740:-:*:*:*:*:*:*:*
    cpe:2.3:h:siemens:sinumerik_one_ppu_1740:-:*:*:*:*:*:*:*

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