Security readout for executives and security teams
Plain-English summary
This Samsung Mobile issue lets a local attacker who already has root-level access alter kernel memory that should be read-only. That can undermine device integrity, but the source material shows a narrow device and chipset scope and does not show remote exploitation.
Executive priority
Treat this as a targeted mobile fleet hygiene issue, not a broad remote emergency. Prioritize patch verification for affected Samsung Exynos devices and remove unsupported devices from sensitive use.
Technical view
CVE-2021-25411 is an improper address validation flaw in Samsung's RKP API before SMR JUN-2021 Release 1. A root-privileged local attacker could write read-only kernel memory on Android Q or R Samsung devices using specified Exynos chipsets.
Likely exposure
Exposure appears limited to Samsung Mobile devices running Android 10 or 11 with Exynos9610, 9810, 9820, or 9830 before SMR JUN-2021 Release 1.
Exploitation context
The cited record describes local exploitation requiring root privileges. It is not listed in KEV, and the provided sources do not report active exploitation or public weaponization.
Researcher notes
The source bundle does not provide CVSS, detailed patch notes, proof-of-concept status, or model-level coverage. Analysis is constrained to Samsung's advisory language and the CVE description.
Mitigation direction
- Apply Samsung SMR JUN-2021 Release 1 or later where available.
- Prioritize affected Exynos devices that are still operational or enterprise-managed.
- Check Samsung guidance for model-specific update availability.
- Retire or isolate devices that cannot receive the relevant Samsung update.
Validation and detection
- Inventory Samsung devices by Android version, chipset, and security patch level.
- Confirm whether each device received SMR JUN-2021 Release 1 or later.
- Focus validation on Exynos9610, 9810, 9820, and 9830 devices.
- Review mobile management records for rooted or unmanaged affected devices.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-25411 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=6CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.