How severe is CVE-2022-4457?

CVE-2022-4457 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2022-4457 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4457?

CVE-2022-4457 affects Cloudflare Warp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4457?

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

When was CVE-2022-4457 published?

CVE-2022-4457 was published on 2023-01-11 and last updated on 2026-06-17.

CVE-2022-4457

CVE-2022-4457 is a medium-severity vulnerability in Cloudflare Warp 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cloudflare Warp
Published: 2023-01-11
Last modified: 2026-06-17

Description

Due to a misconfiguration in the manifest file of the WARP client for Android, it was possible to a perform a task hijacking attack. An attacker could create a malicious mobile application which could hijack legitimate app and steal potentially sensitive information when installed on the victim's device.

Frequently asked questions

What is CVE-2022-4457?: Due to a misconfiguration in the manifest file of the WARP client for Android, it was possible to a perform a task hijacking attack. An attacker could create a malicious mobile application which could hijack legitimate app and steal potentially sensitive information when installed on the victim's device.
How severe is CVE-2022-4457?: CVE-2022-4457 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2022-4457 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4457?: CVE-2022-4457 affects Cloudflare Warp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4457?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-4457 published?: CVE-2022-4457 was published on 2023-01-11 and last updated on 2026-06-17.

References

https://github.com/cloudflare/advisories/security/advisories/GHSA-35f7-fqrc-4hhj

Affected products (1)

cpe:2.3:a:cloudflare:warp:*:*:*:*:*:android:*:*

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