CVE-2021-25374

Members vulnerability

CVSS

8.6

EPSS

3.1%

EPSS pct

86th

Exploited

No known

An improper authorization vulnerability in Samsung Members "samsungrewards" scheme for deeplink in versions 2.4.83.9 in Android O(8.1) and below, and 3.9.00.9 in Android P(9.0) and above allows remote attackers to access a user data related with Samsung Account.

Affected vendor

Samsung

Affected product

Members

CVSS vector

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

Weakness type (CWE)

CWE-285 — Improper Authorization

Published

2021-04-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2021-25374

Confirm whether Samsung Members is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-25374.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-25374

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-25374 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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