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CVE-2021-38085

7.8 · HIGH

The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue.

Published Aug 11, 2021CWE-732EPSS 0.98%

Overview

CVE-2021-38085 is a high-severity vulnerability. It was published on August 11, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.htmlRefdefcon.org/html/defcon-29/dc-29-speakers.html#bainesRefraw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txtRefwww.youtube.com/watch?v=vdesswZYz-8Refpacketstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.htmlRefdefcon.org/html/defcon-29/dc-29-speakers.html#bainesRefraw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txtRefwww.youtube.com/watch?v=vdesswZYz-8

How CyberStrike helps

Frequently asked questions

What is CVE-2021-38085?

CVE-2021-38085 is a high-severity vulnerability. It was published on August 11, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-38085?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-38085?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-38085?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-38085 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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