CVE-2021-25370

Exp

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

Published: 2021-03-26 Last update: 2026-01-14 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-25370 is rated Active Exploitation (72.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.49%). CISA KEV confirms active exploitation (added 2022-11-08) affecting Samsung / Mobile Devices. a weakness (CWE-416) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2021-25370

Name: Samsung Mobile Devices Memory Corruption Vulnerability · CISA KEV detail

Exploit added: 2022-11-08

Action due: 2022-11-29

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2021-25370

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-28 0.24% 0.49% +0.25%
2 2026-01-09 0.31% 0.24% -0.07%
3 2025-11-30 — 0.31% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-25370

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.2 5.9 [email protected]
4.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 3.6 [email protected]
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 6.9 [email protected]

Weakness enumeration for CVE-2021-25370

Affected software / configurations for CVE-2021-25370

Vendor Product Version Raw CPE
samsung android 8.0 cpe:2.3:o:samsung:android:8.0:-:*:*:*:*:*:*
samsung android 8.1 cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-apr-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-apr-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-aug-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-aug-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-dec-2018-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-dec-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-dec-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-feb-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-feb-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-feb-2021-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jan-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jan-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jan-2021-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jul-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jul-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jun-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-jun-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-mar-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-mar-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-may-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-may-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-nov-2018-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-nov-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-nov-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-oct-2018-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-oct-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-oct-2020-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-sep-2019-r1:*:*:*:*:*:*
samsung android 9.0 cpe:2.3:o:samsung:android:9.0:smr-sep-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-apr-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-aug-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-dec-2019-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-dec-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-feb-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-feb-2021-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-jan-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-jan-2021-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-jul-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-jun-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-mar-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-may-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-nov-2019-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-nov-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-oct-2020-r1:*:*:*:*:*:*
samsung android 10.0 cpe:2.3:o:samsung:android:10.0:smr-sep-2020-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-dec-2020-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*
samsung android 11.0 cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*

References for CVE-2021-25370

cvelogic Threat Intelligence