Vulnerability in Mirc
CVE-2019-6453
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.543 (99.0th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.543 · newest: 0.543 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/46392/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- proofofcalc.com/advisories/20190218.txt (Third Party Advisory)
- github.com/proofofcalc/cve-2019-6453-poc (Exploit, Third Party Advisory)
- www.mirc.com/news.html (Product)
- proofofcalc.com/cve-2019-6453-mIRC/ (Exploit, Third Party Advisory)
- twitter.com/proofofcalc/status/1097518413143003136 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-6453?
- CVE-2019-6453 is a high-severity vulnerability in Mirc, classified under Argument Injection. CVSS score: 8.1/10. Published 2019-02-18.
- How severe is CVE-2019-6453?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2019-6453 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.