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Fencer Vulns
high 7.5

CVE-2019-5645 in the critical feed json

Rapid7 Metasploit HTTP Handler Denial of Service

published 2020-09-01 6 y ago modified 2026-10-23 17 d ago also EUVD-2019-15220

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
49.2%
EPSS 49.2% chance of exploitation in 30 days, percentile 98%
public exploits
1
Metasploit

Summary

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.

Patch / fix

Timeline

  1. First public exploit (Metasploit auxiliary/dos/http/metasploit_httphandler_dos)
  2. Published

Exploit prediction

49.18% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Rapid7 Metasploit Framework

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.