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CVE-2021-25372

6.7, medium Known exploited

Samsung Mobile Devices Improper Boundary Check Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
6.7, medium medium CVSS v3.1
EPSS, next 30 days
0.8% higher than 55.9% of scored CVEs
Exploitation
Confirmed in the wild
Published
26 Mar 20215 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 29 Jun 2023. US federal agencies had to remediate by 20 Jul 2023, a deadline that has passed.

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

Description

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

Details

Vendor
Samsung
Product
Samsung Mobile Devices
Weakness
CWE-787 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
mobile.security@samsung.com

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

References 3

Advisories 2

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Samsung CVEs

Every Samsung CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-21042 Samsung Mobile Devices Out-of-Bounds Write Vulnerability KEV EPSS 33% 9.8, critical
  • CVE-2025-21043 Samsung Mobile Devices Out-of-Bounds Write Vulnerability KEV EPSS 2% 9.8, critical
  • CVE-2025-4632 Samsung MagicINFO 9 Server Path Traversal Vulnerability KEV EPSS 24% 9.8, critical
  • CVE-2024-7399 Samsung MagicINFO 9 Server Path Traversal Vulnerability KEV EPSS 92% 9.8, critical
  • CVE-2023-21492 Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability KEV EPSS 3% 4.4, medium
  • CVE-2022-22265 Samsung Mobile Devices Use-After-Free Vulnerability KEV EPSS 0.4% 7.8, high
  • CVE-2021-25487 Samsung Mobile Devices Out-of-Bounds Read Vulnerability KEV EPSS 0.6% 7.8, high
  • CVE-2021-25489 Samsung Mobile Devices Improper Input Validation Vulnerability KEV EPSS 0.5% 5.5, medium

Beyond this page

Is CVE-2021-25372 in your network?

This page tells you how dangerous CVE-2021-25372 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2021-25372 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2021-25372 comes with the devices to patch.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.