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CVE-2019-6453

8.1 · HIGH

mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers.

Published Feb 18, 2019CWE-88EPSS 54.29%

Overview

CVE-2019-6453 is a high-severity vulnerability. It was published on February 18, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers. The attacker can specify an irc:// URI that loads an arbitrary .ini file from a UNC share pathname. Exploitation depends on browser-specific URI handling (Chrome is not exploitable).

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

GitHubgithub.com/proofofcalc/cve-2019-6453-pocRefproofofcalc.com/advisories/20190218.txtRefproofofcalc.com/cve-2019-6453-mIRC/Reftwitter.com/proofofcalc/status/1097518413143003136Refwww.exploit-db.com/exploits/46392/Refwww.mirc.com/news.htmlGitHubgithub.com/proofofcalc/cve-2019-6453-pocRefproofofcalc.com/advisories/20190218.txtRefproofofcalc.com/cve-2019-6453-mIRC/Reftwitter.com/proofofcalc/status/1097518413143003136

How CyberStrike helps

Frequently asked questions

What is CVE-2019-6453?

CVE-2019-6453 is a high-severity vulnerability. It was published on February 18, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).

How severe is CVE-2019-6453?

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-6453?

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-2019-6453?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-6453 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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