What is CVE-2021-4438?

CVE-2021-4438 is a medium-severity security vulnerability in @kyivstarteam/react-native-sms-user-consent (npm), affecting versions < 1.1.5. It is fixed in 1.1.5.

How severe is CVE-2021-4438?

CVE-2021-4438 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of @kyivstarteam/react-native-sms-user-consent are affected by CVE-2021-4438?

@kyivstarteam/react-native-sms-user-consent (npm) versions < 1.1.5 is affected.

Is there a fix for CVE-2021-4438?

Yes. CVE-2021-4438 is fixed in 1.1.5. Upgrade to this version or later.

Is CVE-2021-4438 exploitable, and should I be worried?

Whether CVE-2021-4438 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2021-4438 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2021-4438

Q: How severe is CVE-2021-4438?

CVE-2021-4438 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of @kyivstarteam/react-native-sms-user-consent are affected by CVE-2021-4438?

@kyivstarteam/react-native-sms-user-consent (npm) versions < 1.1.5 is affected.

Q: Is there a fix for CVE-2021-4438?

Yes. CVE-2021-4438 is fixed in 1.1.5. Upgrade to this version or later.

Q: Is CVE-2021-4438 exploitable, and should I be worried?

Whether CVE-2021-4438 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2021-4438 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2021-4438?

Upgrade @kyivstarteam/react-native-sms-user-consent to 1.1.5 or later.

Summary

React Native Sms User Consent Intent Redirection Vulnerability

A vulnerability, which was classified as critical, has been found in kyivstarteam react-native-sms-user-consent up to 1.1.4 on Android. Affected by this issue is the function registerReceiver of the file android/src/main/java/ua/kyivstar/reactnativesmsuserconsent/SmsUserConsentModule.kt. The manipulation leads to improper export of android application components. Attacking locally is a requirement. Upgrading to version 1.1.5 is able to address this issue. The name of the patch is 5423dcb0cd3e4d573b5520a71fa08aa279e4c3c7. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-259508.

Impact

CVE-2021-4438 has a CVSS score of 5.3 (Medium). The vector is requires local access, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.1.5); upgrading removes the vulnerable code path.

Affected versions

@kyivstarteam/react-native-sms-user-consent (< 1.1.5)

Security releases

@kyivstarteam/react-native-sms-user-consent → 1.1.5 (npm)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade @kyivstarteam/react-native-sms-user-consent to 1.1.5 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2021-4438? CVE-2021-4438 is a medium-severity security vulnerability in @kyivstarteam/react-native-sms-user-consent (npm), affecting versions < 1.1.5. It is fixed in 1.1.5.
How severe is CVE-2021-4438? CVE-2021-4438 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of @kyivstarteam/react-native-sms-user-consent are affected by CVE-2021-4438? @kyivstarteam/react-native-sms-user-consent (npm) versions < 1.1.5 is affected.
Is there a fix for CVE-2021-4438? Yes. CVE-2021-4438 is fixed in 1.1.5. Upgrade to this version or later.
Is CVE-2021-4438 exploitable, and should I be worried? Whether CVE-2021-4438 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2021-4438 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2021-4438? Upgrade @kyivstarteam/react-native-sms-user-consent to 1.1.5 or later.