CVE-2019-5645
By sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 49.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
By sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression. When evaluated, this malicious handler can either prevent new HTTP handler sessions from being established, or cause a resource exhaustion on the Metasploit server.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 49.18% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- rapid7/metasploit
- Source
- cve@rapid7.com
EPSS moved from 49.2% on 23 October 2026 to 49.2% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/rapid7/metasploit-framework/commit/5621d200ccf62e4a8f0dad80c1c74f4e0e52d86b
- https://github.com/rapid7/metasploit-framework/pull/11966
- https://github.com/rapid7/metasploit-framework/pull/12433Patch, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/12433Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.