How severe is CVE-2021-25421?

CVE-2021-25421 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-25421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25421?

CVE-2021-25421 affects Samsung Galaxy Watch 3 Plugin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25421?

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

When was CVE-2021-25421 published?

CVE-2021-25421 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-25421

CVE-2021-25421 is a medium-severity vulnerability in Samsung Galaxy Watch 3 Plugin 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-532.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-532
Affected product: Samsung Galaxy Watch 3 Plugin
Published: 2021-06-11
Last modified: 2026-06-17

Description

Improper log management vulnerability in Galaxy Watch3 PlugIn prior to version 2.2.09.21033151 allows attacker with log permissions to leak Wi-Fi password connected to the user smartphone within log.

Frequently asked questions

What is CVE-2021-25421?: Improper log management vulnerability in Galaxy Watch3 PlugIn prior to version 2.2.09.21033151 allows attacker with log permissions to leak Wi-Fi password connected to the user smartphone within log.
How severe is CVE-2021-25421?: CVE-2021-25421 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-25421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25421?: CVE-2021-25421 affects Samsung Galaxy Watch 3 Plugin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25421 published?: CVE-2021-25421 was published on 2021-06-11 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=6

Affected products (1)

cpe:2.3:a:samsung:galaxy_watch_3_plugin:*:*:*:*:*:android:*:*

More vulnerabilities in Samsung Galaxy Watch 3 Plugin

CVE-2022-25830 — Low (CVSS 1.9): Information Exposure vulnerability in Galaxy Watch3 Plugin prior to version 2.2.09.22012751 allows attacker to access…
CVE-2022-25826 — Low (CVSS 1.9): Information Exposure vulnerability in Galaxy S3 Plugin prior to version 2.2.03.22012751 allows attacker to access…

All CVEs affecting Samsung Galaxy Watch 3 Plugin →

Other CWE-532 (Insertion of Sensitive Information into Log File) vulnerabilities

CVE-2022-36407 — Critical (CVSS 9.9): Insertion of Sensitive Information into Log File vulnerability in Hitachi Virtual Storage Platform, Hitachi Virtual…
CVE-2023-40029 — Critical (CVSS 9.9): Argo CD is a declarative continuous deployment for Kubernetes. Argo CD Cluster secrets might be managed declaratively…
CVE-2021-32724 — Critical (CVSS 9.9): check-spelling is a github action which provides CI spell checking. In affected versions and for a repository with the…
CVE-2026-49200 — Critical (CVSS 9.8): The acer_cgi.log file in the device firmware is accessible without authentication via the web interface. This file…
CVE-2026-22778 — Critical (CVSS 9.8): vLLM is an inference and serving engine for large language models (LLMs). From 0.8.3 to before 0.14.1, when an invalid…
CVE-2025-11008 — Critical (CVSS 9.8): The CE21 Suite plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and…

Browse all CWE-532 (Insertion of Sensitive Information into Log File) vulnerabilities →