How severe is CVE-2018-4043?

CVE-2018-4043 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-4043 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4043?

CVE-2018-4043 affects Macpaw Cleanmymac X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4043?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-4043 published?

CVE-2018-4043 was published on 2019-01-10 and last updated on 2026-06-17.

CVE-2018-4043

CVE-2018-4043 is a medium-severity vulnerability in Macpaw Cleanmymac X with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Macpaw Cleanmymac X
Published: 2019-01-10
Last modified: 2026-06-17

Description

An exploitable privilege escalation vulnerability exists in the Clean My Mac X, version 4.04, helper service due to improper input validation. A user with local access can use this vulnerability to modify the file system as root. An attacker would need local access to the machine for a successful exploit.

Frequently asked questions

What is CVE-2018-4043?: An exploitable privilege escalation vulnerability exists in the Clean My Mac X, version 4.04, helper service due to improper input validation. A user with local access can use this vulnerability to modify the file system as root. An attacker would need local access to the machine for a successful exploit.
How severe is CVE-2018-4043?: CVE-2018-4043 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-4043 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4043?: CVE-2018-4043 affects Macpaw Cleanmymac X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4043?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-4043 published?: CVE-2018-4043 was published on 2019-01-10 and last updated on 2026-06-17.

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0717

Affected products (1)

cpe:2.3:a:macpaw:cleanmymac_x:4.04:*:*:*:*:*:*:*

More vulnerabilities in Macpaw Cleanmymac X

CVE-2019-5011 — Medium (CVSS 5.5): An exploitable privilege escalation vulnerability exists in the helper service CleanMyMac X, version 4.20, due to…
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