Security readout for executives and security teams
Plain-English summary
A Samsung Routine flaw can let someone with local attack path and user interaction access protected files on affected Samsung Android devices. It is high severity because successful exploitation could expose or alter sensitive data, but sources describe high complexity and local access, limiting broad internet-scale risk.
Executive priority
Treat as a high-priority mobile patching item for Samsung fleets, especially sensitive-user devices. The business urgency is data protection rather than internet-wide compromise; sources do not support claims of active exploitation.
Technical view
CVE-2023-21441 is CWE-345 insufficient verification of data authenticity in Samsung Mobile Routine before fixed versions for Android 10, 11, and 12. The CVSS 3.1 vector is AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N, indicating local attack, high complexity, user interaction, and high confidentiality and integrity impact.
Likely exposure
Likely exposure is Samsung Android Q (10), R (11), and S (12) devices running Routine below the fixed versions. The provided sources do not identify exposure on non-Samsung products or remote network attack surface.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates a local attacker and required user interaction, so risk is most relevant for compromised, shared, or physically accessible devices.
Researcher notes
Evidence is limited to the CVE record and Samsung advisory metadata. The description mentions access to protected files via unused code but does not provide technical root-cause detail, affected model list, exploit maturity, or operational indicators.
Mitigation direction
- Update Routine to 2.6.30.6 or later on Android 10 devices.
- Update Routine to 3.1.21.10 or later on Android 11 devices.
- Update Routine to 3.5.2.23 or later on Android 12 devices.
- Apply the relevant Samsung February 2023 security maintenance release where available.
- Check Samsung guidance for device-specific update availability.
Validation and detection
- Inventory Samsung Android 10, 11, and 12 devices using Routine.
- Verify installed Routine versions against the fixed version thresholds.
- Confirm February 2023 or later Samsung security updates are installed where applicable.
- Prioritize devices used by executives, administrators, or shared-user environments.
- Document exceptions where vendor updates are unavailable.
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-345: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2023-21441 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
- High
- CVSS
- 7.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N15.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.4HighVector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=02CVE reference
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.
Insufficient Verification of Data Authenticity
Insufficient Verification of Data Authenticity represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.