CVE-2025-21066
CVE-2025-21066 is a medium-severity vulnerability in Samsung Notes with a CVSS 3.x base score of 4.0. 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-125.
Key facts
- Severity: Medium (CVSS 3.x base score 4.0)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-33667
- Weakness: CWE-125
- Affected product: Samsung Notes
- Published:
- Last modified:
Description
Out-of-bounds read in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to access out-of-bounds memory.
Frequently asked questions
- What is CVE-2025-21066?
- Out-of-bounds read in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to access out-of-bounds memory.
- How severe is CVE-2025-21066?
- CVE-2025-21066 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2025-21066 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-21066?
- CVE-2025-21066 affects Samsung Notes. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-21066?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-21066 have an EU (EUVD) identifier?
- Yes. CVE-2025-21066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33667.
- When was CVE-2025-21066 published?
- CVE-2025-21066 was published on 2025-10-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:samsung:notes:*:*:*:*:*:*:*:*
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