Security readout for executives and security teams
Plain-English summary
CVE-2023-21451 is a Samsung Mobile Devices vulnerability in SECRIL before Android S(12). A local, highly privileged attacker could trigger memory corruption. Business urgency is moderate because exploitation appears constrained, but affected older Samsung devices should be prioritized for vendor security updates or retirement.
Executive priority
Treat as a moderate mobile fleet hygiene issue. It is not supported as actively exploited in the provided sources, but older Samsung devices handling sensitive business data should be updated or removed from service promptly.
Technical view
The issue is described as a stack-based overflow in IpcRxEmbmsSessionList in SECRIL, categorized as CWE-20. CVSS 3.1 is 6.7 with local attack vector, high complexity, high privileges required, no user interaction, changed scope, and high confidentiality impact.
Likely exposure
Exposure is likely limited to Samsung Mobile Devices with SECRIL versions prior to Android S(12). The sources do not identify exact device models, firmware builds, or carrier variants, so inventory validation is required.
Exploitation context
The CVE is not listed as CISA KEV in the supplied bundle, and no cited source states active exploitation. The CVSS vector indicates local access and high privileges are required, making opportunistic remote exploitation less likely from the provided evidence.
Researcher notes
The public record is sparse. Key unknowns include exact affected builds, exploit prerequisites beyond CVSS, and patch identifiers. Validation should rely on Samsung’s advisory and device patch levels, not assumptions about all Android or non-Samsung products.
Mitigation direction
- Apply Samsung mobile security updates that address the April 2022 advisory item.
- Identify and upgrade or retire Samsung devices running software prior to Android S(12).
- Check Samsung vendor guidance for model-specific update availability.
- Prioritize devices used by executives, administrators, and sensitive operational teams.
Validation and detection
- Inventory Samsung mobile devices, Android versions, and security patch levels.
- Confirm whether devices are prior to Android S(12).
- Map fleet status against Samsung’s April 2022 mobile security bulletin.
- Document unsupported devices that cannot receive vendor updates.
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
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CWE-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-21451 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
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:H/UI:N/S:C/C:H/I:L/A:L0.85.3Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/serviceWeb.smsb?year=2022&month=04CVE 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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.