CVE-2022-4457

Sensitive-information theft via Android task hijacking

Published Jan 11, 2023 · Updated Apr 9, 2025

Task hijacking in Cloudflare WARP for Android before 6.20 allows local users to steal sensitive information through a malicious app. A misconfigured Android manifest permits an installed malicious app to hijack WARP's legitimate task and impersonate its interface. Exploitation requires the malicious app to be installed and the victim to interact with the hijacked task.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Task hijacking in Cloudflare WARP for Android before 6.20 allows local users to steal sensitive information through a malicious app. A misconfigured Android manifest permits an installed malicious app to hijack WARP's legitimate task and impersonate its interface. Exploitation requires the malicious app to be installed and the victim to interact with the hijacked task.

The record

CVE
CVE-2022-4457
Published
Jan 11, 2023
Updated
Apr 9, 2025
Vendor
Cloudflare
Product
Cloudflare WARP
Classifications
CWE-200, CAPEC-504, T1625
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <<6.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Cloudflare · Cloudflare WARPversion=0 <<6.20

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
5.5CloudflareCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CAPEC-504Task Impersonation
T1625Hijack Execution Flow

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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