CISA KEV entry
CVE-2021-25372Samsung Mobile Devices Improper Boundary Check Vulnerability
Samsung Mobile Devices. Added to the CISA Known Exploited Vulnerabilities catalogue on 29 June 2023.
Data status: a source is stale
Last synced CISA catalogue version 2026.11.04 (released 4 November 2026) 1,768 entries Updated manually
- Date added
- 2023-06-29
- Federal due date
- 2023-07-20 21 days after it was added; passed at the sync of 2026-11-05
- Known ransomware use
- Unknown
- Forensic triage (BOD 26-04)
- No
- CVSS
- 6.7 Medium CVSS 3.1, scored by nvd@nist.gov
- EPSS
- 0.80% percentile 56.8, scored 2026-11-04
- CISA SSVC
- Exploitation active, automatable no, technical impact total
- NVD status
- Analyzed published 2021-03-26, 825 days before the KEV listing
BOD 26-04 remediation window
With CISA's SSVC answers for this CVE (automatable: no, technical impact: total), BOD 26-04 Table 1 gives 3 days and forensic triage on a publicly exposed asset (row 3) and 14 days on an asset that is not publicly exposed (row 11) S06. The catalogue due date, 21 days after the date added, was set before BOD 26-04 took effect on 10 June 2026 S06. The directive binds US federal civilian executive branch agencies only.
What CISA says
Short description
Samsung mobile devices contain an improper boundary check vulnerability within DSP driver that allows for out-of-bounds memory access.
Required action
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
Notes
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=3; https://nvd.nist.gov/vuln/detail/CVE-2021-25372
CWE in the catalogue
CWE-787
Official links
- CISA KEV catalogue entry cisa.gov
- NVD record nvd.nist.gov
Vendor advisory and patch links
References NVD tags Vendor Advisory or Patch, exactly as NVD lists them.
- https://security.samsungmobile.com Vendor Advisory
- https://security.samsungmobile.com/securityUpdate.smsb Vendor Advisory
Links in CISA's notes
NVD details
- CWE (NVD)
- CWE-787 by nvd@nist.gov, CWE-703 by CISA ADP
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- CVSS versions in NVD
- V2, V31
- Last modified in NVD
- 2026-06-17T03:41:57.807
Where each value comes from
| Field | Source | Fetched, UTC | State |
|---|---|---|---|
| Catalogue fields | CISA KEV JSON, version 2026.11.04 | 2026-11-05 11:38 | current |
| NVD published, status, CVSS, CWE, vendor links | NVD CVE API 2.0; CVSS: NVD (nvd@nist.gov) | 2026-11-03 12:37 | current at 2026-11-05 11:38 |
| EPSS | FIRST EPSS API, scores of 2026-11-04 | 2026-11-05 11:38 | current |
| CISA SSVC | CISA ADP (via NVD), record of 2025-02-04 | 2026-11-03 12:37 | current |
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