How severe is CVE-2020-11507?

CVE-2020-11507 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11507 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11507?

CVE-2020-11507 affects Malwarebytes Adwcleaner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11507?

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-2020-11507 published?

CVE-2020-11507 was published on 2020-04-06 and last updated on 2026-06-17.

CVE-2020-11507

CVE-2020-11507 is a high-severity vulnerability in Malwarebytes Adwcleaner with a CVSS 3.x base score of 7.8. 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-426.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.9
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Malwarebytes Adwcleaner
Published: 2020-04-06
Last modified: 2026-06-17

Description

An Untrusted Search Path vulnerability in Malwarebytes AdwCleaner 8.0.3 could cause arbitrary code execution with SYSTEM privileges when a malicious DLL library is loaded.

Frequently asked questions

What is CVE-2020-11507?: An Untrusted Search Path vulnerability in Malwarebytes AdwCleaner 8.0.3 could cause arbitrary code execution with SYSTEM privileges when a malicious DLL library is loaded.
How severe is CVE-2020-11507?: CVE-2020-11507 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11507 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11507?: CVE-2020-11507 affects Malwarebytes Adwcleaner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11507?: 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-2020-11507 published?: CVE-2020-11507 was published on 2020-04-06 and last updated on 2026-06-17.

References

https://forums.malwarebytes.com/topic/258140-release-adwcleaner-804/

Affected products (1)

cpe:2.3:a:malwarebytes:adwcleaner:8.0.3:*:*:*:*:*:*:*

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