Security readout for executives and security teams
Plain-English summary
CVE-2023-21425 is a Samsung Mobile telecom application access-control flaw. On affected Samsung mobile devices, a local attacker could obtain sensitive information. The published impact is limited to confidentiality, with no stated integrity or availability impact.
Executive priority
Treat this as a moderate mobile fleet hygiene issue, not an emergency based on the provided evidence. Focus on confirming Samsung patch compliance, especially for older Android Q-T devices still used for business or sensitive communications.
Technical view
The CVE describes improper access control/authentication in Samsung's telecom application before SMR JAN-2023 Release 1. Affected Android generations are Q(10), R(11), S(12), and T(13). CVSS 3.1 is 4.3 with local attack vector, low complexity, no privileges, no user interaction, changed scope, and low confidentiality impact.
Likely exposure
Exposure is most likely on Samsung Mobile devices running Android Q through T that did not receive Samsung's January 2023 Security Maintenance Release 1 or later. The source bundle does not identify specific device models or carrier build exceptions.
Exploitation context
The provided sources do not cite active exploitation, and the CVE is not listed as KEV. The attack is local, so business urgency depends on device fleet update status and threat scenarios involving physical access, malicious local apps, or already-present local attackers.
Researcher notes
Public detail is limited. The record names a telecom application access-control issue and sensitive information exposure, but does not describe affected components, data types, exploit primitives, or proof of exploitation. Avoid assuming remote reachability or broader impact beyond the cited local confidentiality exposure.
Mitigation direction
- Apply Samsung SMR JAN-2023 Release 1 or later where available.
- Prioritize unmanaged or delayed-update Samsung Android Q-T devices.
- Use MDM reporting to enforce minimum Android security patch levels.
- Check Samsung advisory updates for model-specific guidance.
- Retire devices that cannot receive the fixed security release.
Validation and detection
- Inventory Samsung Mobile devices by Android generation and patch level.
- Confirm January 2023 SMR Release 1 or later on affected devices.
- Review MDM compliance reports for stale Samsung security patch levels.
- Map exceptions for carrier-locked or unsupported device models.
- Track CVE-2023-21425 closure in vulnerability management records.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2023-21425 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
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/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:L/PR:N/UI:N/S:C/C:L/I:N/A:N2.51.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=01CVE 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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.