BlackTreeCVE Intelligence
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Full vulnerability report · 2026
CVE-2026-28634High confidence

This could lead to local escalation of privilege with no additional execution privileges needed

Google · Android

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-73977

No EUVD known-exploited evidence

In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

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
7.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
01

What, why and how

In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

What

In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Why

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Why

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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 → Protection Mechanism Failure → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-693 ↗

CWE-693: Protection Mechanism Failure. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: 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.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
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.
CWE-693
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-73977Official EUVD mapping

In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3251Android Patchday September 2026: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, vertrauliche Informationen offenzulegen oder Denial-of-Service-Zustände herbeizuführen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1158Multiples vulnérabilités dans Google Android

d?id=CVE-2026-28620 Référence CVE CVE-2026-28622 https://www.cve.org/CVERecord?id=CVE-2026-28622 Référence CVE CVE-2026-28623 https://www.cve.org/CVERecord?id=CVE-2026-28623 Référence CVE CVE-2026-28624 https://www.cve.org/CVERecord?id=CVE-2026-28624 Référence CVE CVE-2026-28626 https://www.cve.org/CVERecord?id=CVE-2026-28626 Référence CVE CVE-2026-28627 https://www.cve.org/CVERecord?id=CVE-2026-28627 Référence CVE CVE-2026-28630 https://www.cve.org/CVERecord?id=CVE-2026-28630 Référence CVE CVE-2026-28631 https://www.cve.org/CVERecord?id=CVE-2026-28631 Référence CVE CVE-2026-28633 https://www.cve.org/CVERecord?id=CVE-2026-28633 Référence CVE CVE-2026-28634 https://www.cve.org/CVERecord?id=CVE-2026-28634 Référence CVE CVE-2026-28636 https://www.cve.org/CVERecord?id=CVE-2026-28636 Référence CVE CVE-2026-28638 https://www.cve.org/CVERecord?id=CVE-2026-28638 Référence CVE CVE-2026-28639 https://www.cve.org/CVERecord?id=CVE-2026-28639 Référence CVE CVE-2026-28642 https://www.cve.org/CVERecord?id=CVE-2026-28642 Référence CVE CVE-2026-28644 https://www.cve.org/CVERecord?id=CVE-2026-28644 Référence CVE CVE-2026-28650 https://www.cve.org/CVERecord?id=CVE-2026-28650 Référence CVE CVE-2026-28652 https://www.cve.org/CVERecord?id=CVE-2026-28652 Référence CVE CVE-2026-28653 https://www.cve.org/CVERecord?id=

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-di-sicurezza-android-16Aggiornamenti di sicurezza Android

nuova finestra - - CVE-2026-28662 : apre una nuova finestra - - CVE-2026-28660 : apre una nuova finestra - - CVE-2026-28658 : apre una nuova finestra - - CVE-2026-28657 : apre una nuova finestra - - CVE-2026-28656 : apre una nuova finestra - - CVE-2026-28655 : apre una nuova finestra - - CVE-2026-28653 : apre una nuova finestra - - CVE-2026-28652 : apre una nuova finestra - - CVE-2026-28650 : apre una nuova finestra - - CVE-2026-28644 : apre una nuova finestra - - CVE-2026-28642 : apre una nuova finestra - - CVE-2026-28639 : apre una nuova finestra - - CVE-2026-28638 : apre una nuova finestra - - CVE-2026-28636 : apre una nuova finestra - - CVE-2026-28634 : apre una nuova finestra - - CVE-2026-28633 : apre una nuova finestra - - CVE-2026-28631 : apre una nuova finestra - - CVE-2026-28630 : apre una nuova finestra - - CVE-2026-28627 : apre una nuova finestra - - CVE-2026-28626 : apre una nuova finestra - - CVE-2026-28624 : apre una nuova finestra - - CVE-2026-28623 : apre una nuova finestra - - CVE-2026-28622 : apre una nuova finestra - - CVE-2026-28620 : apre una nuova finestra - - CVE-2026-28618 : apre una nuova finestra - - CVE-2026-28617 : apre una nuova finestra - - CVE-2026-28616 : apre una nuova finestra - - CVE-2026-28614 : apre una nuova finestra - - CVE-2026-28613 : apre una nuova fi

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.
Fix not verified
Affected
Android: 17, 16-qpr2, 16, 15, 14
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 8 Sept 2026 · Last source change 10 Sept 2026, 14:36 UTC · CWE-693 · Protection Mechanism Failure

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-09
European sourceENISA EUVD · EUVD-2026-73977
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enrichment underway

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    CISA ADP ↗
  2. CVSS scoreCVSS score changed from not recorded to 7.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
    Before
    not recorded
    After
    7.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
    CISA ADP ↗
  3. ENISA EUVD mappingEUVD-2026-73977 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-73977"}
    ENISA EUVD ↗
  4. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-73977↗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-2026-28634 · cve.blacktree.nl