Is CVE-2021-25372 in the CISA KEV catalog?

Yes. CVE-2021-25372 is on the CISA Known Exploited Vulnerabilities list, added 2023-06-29.

What is the CVSS severity of CVE-2021-25372?

CVE-2021-25372 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-25372?

CVE-2021-25372 has an EPSS score of 0.80% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-25372?

No published fix for CVE-2021-25372 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2023-07-20. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2021-25372

MEDIUMCISA KEV

6.1

CVSS v3

NVD

Description

An improper boundary check in DSP driver prior to SMR Mar-2021 Release 1 allows out of bounds memory access.

CWE-787Out-of-bounds Write CWE-703

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Federal remediation due: 2023-07-20

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.80%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Samsung Mobile Devices Improper Boundary Check Vulnerability

Samsung mobile devices contain an improper boundary check vulnerability within DSP driver that allows for out-of-bounds memory access.

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Remediation due: 2023-07-20

References

Vendor Advisory2

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-14.