How severe is CVE-2019-5645?

CVE-2019-5645 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-5645 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 42% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5645?

CVE-2019-5645 affects Rapid7 Metasploit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5645?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-5645 published?

CVE-2019-5645 was published on 2020-09-01 and last updated on 2026-06-17.

CVE-2019-5645

CVE-2019-5645 is a high-severity vulnerability in Rapid7 Metasploit with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 42% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 42% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Rapid7 Metasploit
Published: 2020-09-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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. When evaluated, this malicious handler can either prevent new HTTP handler sessions from being established, or cause a resource exhaustion on the Metasploit server.
How severe is CVE-2019-5645?: CVE-2019-5645 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-5645 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 42% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5645?: CVE-2019-5645 affects Rapid7 Metasploit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5645?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-5645 published?: CVE-2019-5645 was published on 2020-09-01 and last updated on 2026-06-17.

References

https://github.com/rapid7/metasploit-framework/pull/12433

Affected products (1)

cpe:2.3:a:rapid7:metasploit:*:*:*:*:*:*:*:*

More vulnerabilities in Rapid7 Metasploit

CVE-2020-7385 — High (CVSS 8.1): By launching the drb_remote_codeexec exploit, a Metasploit Framework user will inadvertently expose Metasploit to the…
CVE-2020-7377 — High (CVSS 8.1): The Metasploit Framework module "auxiliary/admin/http/telpho10_credential_dump" module is affected by a relative path…
CVE-2017-5235 — High (CVSS 7.8): Rapid7 Metasploit Pro installers prior to version 4.13.0-2017022101 contain a DLL preloading vulnerability, wherein it…
CVE-2019-5624 — High (CVSS 7.3): Rapid7 Metasploit Framework suffers from an instance of CWE-22, Improper Limitation of a Pathname to a Restricted…
CVE-2020-7376 — High (CVSS 7.1): The Metasploit Framework module "post/osx/gather/enum_osx module" is affected by a relative path traversal…
CVE-2017-5231 — High (CVSS 7.1): All editions of Rapid7 Metasploit prior to version 4.13.0-2017020701 contain a directory traversal vulnerability in the…

All CVEs affecting Rapid7 Metasploit →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →