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Full vulnerability report · 2026
CVE-2026-21028High confidence

Improper access control in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information

Samsung Mobile · Samsung Mobile Devices

5.1MediumCVSS 4.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.09% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Samsung Mobile Samsung Mobile Devices and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-34800

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Improper access control in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information.

What

Improper access control in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

What

Improper access control in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Access Control → obtain information outside the intended access boundary
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-284 ↗

CWE-284: Improper Access Control. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCLowVulnerable-system confidentiality: A successful attack can cause a limited loss.VILowVulnerable-system integrity: A successful attack can cause a limited loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedCWE-284
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-1770Samsung Android: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Samsung Android ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um seine Privilegien zu erhöhen, und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260610Security Bulletin 10 Jun 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 10 Jun 2026, published on 10 June 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-018529サムスンのAndroidにおける不特定の脆弱性

SMR 2026年6月リリース1以前のAuditLogServiceには不適切なアクセス制御の脆弱性が存在し、それによりローカルの攻撃者が機密情報にアクセスできてしまう問題があります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6820삼성전자 제품 보안 업데이트 권고

026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21025 | 삼성 갤럭시 (Android 14, 15, 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21026 | 삼성 갤럭시 (Android 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21017 | 삼성 갤럭시 (Android 14, 15, 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21029 | 삼성 갤럭시 (Android 14, 15, 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21030 | 삼성 갤럭시 (Android 14, 15, 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21027 | 삼성 갤럭시 (Android 14, 15, 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | | CVE-2026-21028 | 삼성 갤럭시 (Android 16) | SMR Jun-2026 Release 1 이전 | SMR Jun-2026 Release 1 | ※ 하단의 참고 사이트를 확인하여 업데이트 수행[1] □ 조치 방안 o 설정 → 소프트웨어 업데이트 → 다운로드 및 설치를 통해 최신 버전으로 업데이트 권고[1] ※ 갤럭시 기기는 자동 업데이트를 지원하며, 미적용 기기는 수동으로 업데이트 여부 확인 필요 □ 참고사이트 [1] https://security.samsungmobile.com/securityUpdate.smsb □ 문의처 o 침해사고 발생 시 아래 절차를 통해 침해사고 신고 ※ 보호나라(https://boho.or.kr) → 침해사고 신고 → 신고하기 □ 작성 : 위협대응단 AI취약점대응팀

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0173Kwetsbaarheden verholpen in Google Android en Samsung Mobile

An improper access control vulnerability in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
See the vendor and CVE records for the affected range.
Fixed
Samsung Mobile Devices: SMR Jun-2026 Release in Android 16 < *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 5 Jun 2026 · Last source change 5 Jun 2026, 19:06 UTC · CWE-284 · Improper Access Control

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-34800
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Missing structured fields: affected versions. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-34800↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-21028 · cve.blacktree.nl