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CVE-2021-25372

MEDIUM
6.7
CVSS Score
Published: March 26, 2021 at 06:25 PM UTC
Updated: June 17, 2026 at 03:41 AM UTC
5 products affected across 2 vendorsAndroidSamsung Exynos 980Samsung Exynos 2100

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Severity
MEDIUM6.7
Exploitation
CISA KEV
Exploit prediction
EPSS 0.8%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score0.8%

EPSS (Exploit Prediction Scoring System) estimates a 0.8% chance this CVE is exploited in the wild within the next 30 days — higher than 57% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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
Ransomware Use
Unknown
Added to KEV
Jun 29, 2023
Remediation Due
Jul 20, 2023
1198 days overdue
Notes
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=3
https://nvd.nist.gov/vuln/detail/CVE-2021-25372

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Android· Samsung
95%
10.0 smr-feb-2021-r110.0 smr-jan-2021-r111.0 smr-feb-2021-r111.0 smr-jan-2021-r1
samsung-exynos-2100 (environment) · samsung-exynos-980-firmware (environment) · samsung-exynos-9830 (environment)
Samsung Mobile Devices· Samsung Mobile
60%
Q(10.0), R(11.0) devices with exynos980, exynos2100, exynos9830 ≤ v < SMR Mar-2021 Release 1Q(10.0), R(11.0) devices with exynos980, exynos2100, exynos9830
Affected range stops below SMR Mar-2021 Release 1, so it looks safe — our inference, not a vendor statement
Samsung Exynos 2100· Samsungdevice
80%
All versions
Samsung Exynos 980· Samsungdevice
80%
All versions
Exynos 9830· Samsungdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://security.samsungmobile.com
x_refsource_MISCx_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://security.samsungmobile.com/securityUpdate.smsb
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25372

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787CWE-703

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