How severe is CVE-2020-35152?

CVE-2020-35152 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-35152 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35152?

CVE-2020-35152 affects Cloudflare Warp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-35152?

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

When was CVE-2020-35152 published?

CVE-2020-35152 was published on 2021-02-03 and last updated on 2026-06-17.

CVE-2020-35152

CVE-2020-35152 is a medium-severity vulnerability in Cloudflare Warp with a CVSS 3.x base score of 4.5. 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-428.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
CVSS v2: 4.6
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-428
Affected product: Cloudflare Warp
Published: 2021-02-03
Last modified: 2026-06-17

Description

Cloudflare WARP for Windows allows privilege escalation due to an unquoted service path. A malicious user or process running with non-administrative privileges can become an administrator by abusing the unquoted service path issue. Since version 1.2.2695.1, the vulnerability was fixed by adding quotes around the service's binary path. This issue affects Cloudflare WARP for Windows, versions prior to 1.2.2695.1.

Frequently asked questions

What is CVE-2020-35152?: Cloudflare WARP for Windows allows privilege escalation due to an unquoted service path. A malicious user or process running with non-administrative privileges can become an administrator by abusing the unquoted service path issue. Since version 1.2.2695.1, the vulnerability was fixed by adding quotes around the service's binary path. This issue affects Cloudflare WARP for Windows, versions prior to 1.2.2695.1.
How severe is CVE-2020-35152?: CVE-2020-35152 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-35152 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35152?: CVE-2020-35152 affects Cloudflare Warp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35152?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-35152 published?: CVE-2020-35152 was published on 2021-02-03 and last updated on 2026-06-17.

References

https://github.com/cloudflare/advisories/security/advisories/GHSA-qc57-v5q8-f22h

Affected products (1)

cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:*

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