CVE-2026-9266 Vulnerability Analysis & Exploit Details

CVE-2026-9266
Vulnerability Scoring

Analysis In Progress

Attack Complexity Details

Attack Complexity:
Attack Complexity Analysis In Progress
Attack Vector:
Attack Vector Under Analysis
Privileges Required: None
No authentication is required for exploitation.
Scope:
Impact is confined to the initially vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-9266 Details

Status: Received on 12 Jun 2026, 11:16 UTC

Published on: 12 Jun 2026, 11:16 UTC

CVSS Release:

CVE-2026-9266 Vulnerability Summary

CVE-2026-9266: A Missing Required Cryptographic Step vulnerability has been identified in Moxa's embedded Linux firmware for industrial computers and controllers. This vulnerability represents an incomplete remediation of CVE-2026-0714. The firmware introduced TPM2 parameter encryption as a countermeasure against CVE-2026-0714. However, an omission in the authorization session configuration causes the parameter encryption to provide no effective protection. An attacker with invasive physical access to the device can still capture TPM communications on the SPI bus and derive the LUKS disk encryption key in plaintext. While successful exploitation results in full compromise of the encrypted disk volume, the attack requires invasive physical access, including opening the device and attaching external equipment to the SPI bus. Remote exploitation is not possible, and the attack does not affect any downstream systems.

Assessing the Risk of CVE-2026-9266

Access Complexity Graph

The exploitability of CVE-2026-9266 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-2026-9266

No exploitability data is available for CVE-2026-9266.

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-2026-9266, 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-2026-9266, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: None
CVE-2026-9266 does not compromise confidentiality.
Integrity: None
CVE-2026-9266 does not impact data integrity.
Availability: None
CVE-2026-9266 does not affect system availability.

CVE-2026-9266 References

External References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-266240-cve-2026-9266-missing-required-cryptographic-step-vulnerability-in-industrial-computers

CWE Common Weakness Enumeration

CWE-325

CAPEC Common Attack Pattern Enumeration and Classification

Subvert Code-signing Facilities CAPEC-68 Many languages use code signing facilities to vouch for code's identity and to thus tie code to its assigned privileges within an environment. Subverting this mechanism can be instrumental in an attacker escalating privilege. Any means of subverting the way that a virtual machine enforces code signing classifies for this style of attack.

Protect Your Infrastructure against CVE-2026-9266: 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-2026-49347 – Quest Bot is an opensource Discord Bot. Prior to version 1.1.8, any user who can access the ticket panel can repeatedly create new ticket channels....
CVE-2026-48485 – Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, the latest release suppresses mentions when creating, unbanning, unwarning, kicking...
CVE-2026-47197 – Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, a moderator with the relevant Discord permission bit can use the bot to moderate us...
CVE-2026-47196 – Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, the automod add command trims user input but does not reject an empty result. Addin...
CVE-2026-47195 – Quest Bot is an opensource Discord Bot. Prior to version 1.1.6, the purge and slowmode commands check only guild-level permissions on the invoking ...