Is CVE-2018-1000500 in the CISA KEV catalog?

No. CVE-2018-1000500 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1000500?

CVE-2018-1000500 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2018-1000500?

CVE-2018-1000500 has an EPSS score of 2.46% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000500?

Upgrade busybox on ubuntu 18.04 to 1:1.27.2-2ubuntu3.3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-1000500

HIGHEPSS 83th pctl

8.1

CVSS v3

NVD

Description

Busybox contains a Missing SSL certificate validation vulnerability in The "busybox wget" applet that can result in arbitrary code execution. This attack appear to be exploitable via Simply download any file over HTTPS using "busybox wget https://compromised-domain.com/important-file".

CWE-295Improper Certificate Validation

How to fix

Remediation Available

busyboxUbuntu

Fixed in:1:1.27.2-2ubuntu3.3USN-4531-1

Fixed in:1:1.30.1-4ubuntu6.2USN-4531-1

busybox-initramfsUbuntu

Fixed in:1:1.27.2-2ubuntu3.3USN-4531-1

Fixed in:1:1.30.1-4ubuntu6.2USN-4531-1

busybox-staticUbuntu

Fixed in:1:1.27.2-2ubuntu3.3USN-4531-1

Fixed in:1:1.30.1-4ubuntu6.2USN-4531-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.46%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch1

git.busybox.net

Vendor Advisory1

lists.busybox.net

Other references1

usn.ubuntu.com

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-09.