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CVE-2021-4438

17
FAUCET Score

CVE-2021-4438 is a critical vulnerability in kyivstarteam react-native-sms-user-consent up to version 1.1.4 on Android, specifically affecting the registerReceiver function. This improper export of Android application components allows a local attacker to achieve low impact on confidentiality, integrity, and availability. The CVSS score is 5.3 (MEDIUM) with a local attack vector and low complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion, and the vulnerability can be remediated by upgrading to version 1.1.5.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.4CPE matchmatch criteria
cpe:2.3:a:kyivstar:react_native_sms_user_consent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 72nd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @kyivstarteam/react-native-sms-user-consentFixed in: 1.1.5

Vendor Advisories (1)

npmGHSA-r956-2553-vvhrmedium

React Native Sms User Consent Intent Redirection Vulnerability

Apr 7, 2024

References

github.com / kyivstarteam/react-native-sms-user-consent/commit/5423dcb0cd3e4d573b5520a71fa08aa279e4c3c7
Patch
github.com / kyivstarteam/react-native-sms-user-consent/pull/4
Patch
github.com / kyivstarteam/react-native-sms-user-consent/releases/tag/1.1.5
Release Notes
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry