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CVE-2019-6453
mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers. The attacker can…
High8.1EPSS 54.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 54.6% · top 1.0% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
n/a
- affected n/a
References (6)
- 46392 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://proofofcalc.com/advisories/20190218.txt (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/proofofcalc/cve-2019-6453-poc (opens in a new tab)x_refsource_MISCx_transferred
- https://www.mirc.com/news.html (opens in a new tab)x_refsource_MISCx_transferred
- https://proofofcalc.com/cve-2019-6453-mIRC/ (opens in a new tab)x_refsource_MISCx_transferred
- https://twitter.com/proofofcalc/status/1097518413143003136 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-6453)Record last updated .