CVE-2021-25424
CVE-2021-25424 is a high-severity vulnerability in Samsung Galaxy Watch Active 2 Firmware with a CVSS 3.x base score of 8.8. 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-287.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 5.8
- EPSS exploit prediction: 0% (35th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Samsung Galaxy Watch Active 2 Firmware
- Published:
- Last modified:
Description
Improper authentication vulnerability in Tizen bluetooth-frwk prior to Firmware update JUN-2021 Release allows bluetooth attacker to take over the user's bluetooth device without user awareness.
Frequently asked questions
- What is CVE-2021-25424?
- Improper authentication vulnerability in Tizen bluetooth-frwk prior to Firmware update JUN-2021 Release allows bluetooth attacker to take over the user's bluetooth device without user awareness.
- How severe is CVE-2021-25424?
- CVE-2021-25424 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-25424 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25424?
- CVE-2021-25424 primarily affects Samsung Galaxy Watch Active 2 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-25424?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-25424 published?
- CVE-2021-25424 was published on 2021-06-11 and last updated on 2026-06-17.
References
Affected products (9)
- cpe:2.3:o:samsung:galaxy_watch_active_2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:galaxy_watch_active_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:galaxy_watch_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:galaxy_watch_3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:gear_s3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:gear_s2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:gear_s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:gear_2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:samsung:gear_2_neo_firmware:*:*:*:*:*:*:*:*
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- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
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