CVE-2020-26991 Vulnerability Analysis & Exploit Details

CVE-2020-26991
Vulnerability Scoring

8.8
/10
Severe Risk

Cybersecurity professionals consider CVE-2020-26991 an immediate threat requiring urgent mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2020-26991 Details

Status: Analyzed

Last updated: 🕢 06 Oct 2022, 19:42 UTC
Originally published on: 🕘 12 Jan 2021, 21:15 UTC

Time between publication and last update: 631 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-26991 Vulnerability Summary

CVE-2020-26991: A vulnerability has been identified in JT2Go (All versions < V13.1.0.2), Teamcenter Visualization (All versions < V13.1.0.2). Affected applications lack proper validation of user-supplied data when parsing ASM files. This could lead to pointer dereferences of a value obtained from untrusted source. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-11899)

Assessing the Risk of CVE-2020-26991

Access Complexity Graph

The exploitability of CVE-2020-26991 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-2020-26991

With low attack complexity and no required privileges, CVE-2020-26991 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-2020-26991, 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-2020-26991, 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-2020-26991 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2020-26991 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2020-26991 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: 2.379% (probability of exploit)

EPSS Percentile: 89.86% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 10.14% of others.

CVE-2020-26991 References

External References

CWE Common Weakness Enumeration

CWE-476

Vulnerable Configurations

  • cpe:2.3:a:siemens:jt2go:-:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:jt2go:-:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:jt2go:13.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:jt2go:13.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:jt2go:13.1.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:jt2go:13.1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:-:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:-:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:8.0.9085:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:8.0.9085:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:12.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:12.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:13.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:13.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:13.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:13.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:siemens:teamcenter_visualization:13.1.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:siemens:teamcenter_visualization:13.1.0.1:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2020-26991: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-39361 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WProyal Royal Elementor Addons allows Stored ...
  • CVE-2025-27533 – Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. During unmarshalling of OpenWire commands the size value of buffers ...
  • CVE-2025-20980 – Out-of-bounds write in libsavscmn prior to Android 15 allows local attackers to cause memory corruption.
  • CVE-2025-20979 – Out-of-bounds write in libsavscmn prior to Android 15 allows local attackers to execute arbitrary code.
  • CVE-2025-20978 – Improper access control in PENUP prior to version 3.9.19.32 allows local attackers to access files with PENUP privilege.