Is CVE-2021-25370 in the CISA KEV catalog?

Yes. CVE-2021-25370 is on the CISA Known Exploited Vulnerabilities list, added 2022-11-08.

What is the CVSS severity of CVE-2021-25370?

CVE-2021-25370 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-25370?

CVE-2021-25370 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-25370?

No published fix for CVE-2021-25370 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-11-29. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2021-25370

MEDIUMCISA KEV

6.1

CVSS v3

NVD

Description

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

CWE-416Use After Free CWE-703

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-11-29

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

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Samsung Mobile Devices Memory Corruption Vulnerability

Samsung mobile devices using Mali GPU contain an incorrect implementation handling file descriptor in dpu driver. This incorrect implementation results in memory corruption, leading to kernel panic. This vulnerability was chained with CVE-2021-25337 and CVE-2021-25369.

Apply updates per vendor instructions.

Remediation due: 2022-11-29

References

Vendor Advisory2

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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.