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CVE Record

CVE-2023-21430: An out-of-bound read vulnerability in mapToBuffer function in libSDKRecognitionText.spensdk.samsung.so libr...

An out-of-bound read vulnerability in mapToBuffer function in libSDKRecognitionText.spensdk.samsung.so library prior to SMR JAN-2023 Release 1 allows attacker to cause memory access fault.

MediumCVSS 4.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Samsung mobile device flaw in an S Pen text recognition library. A local, low-privileged attacker could trigger a memory fault with limited integrity and availability impact. The supplied evidence does not show remote exploitation or data theft.

Executive priority

Handle as a routine but necessary mobile patching item. It is not supported as actively exploited in the provided evidence, but unpatched Samsung devices may remain exposed to local abuse affecting reliability and limited integrity.

Technical view

CVE-2023-21430 is a CWE-125 out-of-bounds read in mapToBuffer within libSDKRecognitionText.spensdk.samsung.so before Samsung SMR JAN-2023 Release 1. CVSS 3.1 is 4.4: local attack vector, low privileges, no user interaction, unchanged scope, no confidentiality impact, low integrity and availability impact.

Likely exposure

Exposure is limited to Samsung Mobile Devices running Android Q(10), R(11), S(12), or T(13) before SMR JAN-2023 Release 1. Fleets with older Samsung patch levels should treat this as unresolved until device patch status is confirmed.

Exploitation context

The source bundle does not identify active exploitation, public exploit availability, or CISA KEV listing. The CVSS vector indicates local access and low privileges are required, with no user interaction.

Researcher notes

Evidence is sparse: the bundle names the vulnerable library and function but does not describe trigger conditions, reachable apps, or exact device models. Avoid assuming remote attack paths or exploitability beyond the supplied CVSS vector.

Mitigation direction

  • Update affected Samsung devices to SMR JAN-2023 Release 1 or later.
  • Check Samsung’s advisory for model-specific update availability.
  • Use MDM compliance rules to block outdated Samsung patch levels.
  • Prioritize corporate-owned or high-risk user devices first.

Validation and detection

  • Inventory Samsung devices running Android 10 through 13.
  • Verify each device’s Samsung security patch level.
  • Confirm vulnerable devices received SMR JAN-2023 Release 1 or later.
  • Review CVE and Samsung advisory records for affected version mapping.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CWE-125: 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.

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cve · low confidence lookup

CVE-2023-21430 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
4.4CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L1.82.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.4Medium
CVSS 3.1 vector shape for CVE-2023-21430Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Samsung MobileSamsung Mobile DevicesQ(10), R(11), S(12), T(13)Listed
Weakness

CWE details

CWE-125

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs