CVE-2019-6453

Name: CVE-2019-6453
Creator: NVD / NIST
Published: 2019-02-18T15:29:00.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 71.78%

Last modified Jun 17, 2026

CVE-2019-6453 is a vulnerability of currently unknown severity. 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. EPSS estimates a 71.78% chance of exploitation in the next 30 days.

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).

Metrics

EPSS Probability

71.78%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-88

Affected Software

Vendor	Product	Versions
Mirc	Mirc	< 7.55

References

https://github.com/proofofcalc/cve-2019-6453-pocExploit, Third Party Advisory
https://proofofcalc.com/advisories/20190218.txtThird Party Advisory
https://proofofcalc.com/cve-2019-6453-mIRC/Exploit, Third Party Advisory
https://twitter.com/proofofcalc/status/1097518413143003136Exploit, Third Party Advisory
https://www.exploit-db.com/exploits/46392/Exploit, Third Party Advisory, VDB Entry
https://www.mirc.com/news.htmlProduct
https://github.com/proofofcalc/cve-2019-6453-pocExploit, Third Party Advisory
https://proofofcalc.com/advisories/20190218.txtThird Party Advisory
https://proofofcalc.com/cve-2019-6453-mIRC/Exploit, Third Party Advisory
https://twitter.com/proofofcalc/status/1097518413143003136Exploit, Third Party Advisory
https://www.exploit-db.com/exploits/46392/Exploit, Third Party Advisory, VDB Entry
https://www.mirc.com/news.htmlProduct

Timeline

Published: Feb 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-6453?

How severe is CVE-2019-6453?

Severity scoring for CVE-2019-6453 is pending analysis. The EPSS model estimates a 71.78% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6453?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-6453?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST