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Full vulnerability report · 2023
CVE-2023-35658High confidence

This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed

Google · Android

8.8HighCVSS 3.1
Recommended action
Within 7 days

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

Patch available
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-2023-39658

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 actionWithin 7 days

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

Patch available
01

What, why and how

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible privilege escalation due to a use after free. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

What

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible privilege escalation due to a use after free. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.

What

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible privilege escalation due to a use after free. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.

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
the affected interface → Use After Free → gain additional privileges
Attack surface
Unspecified
Privileges required
None: unauthenticated exploitation is possible
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-416

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

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

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing 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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedPrivilege escalationCWE-416
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2023-2273Google Android: Mehrere Schwachstellen

Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erweitern, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen und beliebigen Code auszuführen.

Official advisory
BSI · German · WID-SEC-W-2023-2272Samsung Android: Mehrere Schwachstellen

Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Samsung Android ausnutzen, um Dateien zu manipulieren, seine Privilegien zu erweitern, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen und beliebigen Code auszuführen.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0711Multiples vulnérabilités dans Android

d?id=CVE-2023-28538 Référence CVE CVE-2023-28549 https://www.cve.org/CVERecord?id=CVE-2023-28549 Référence CVE CVE-2023-28573 https://www.cve.org/CVERecord?id=CVE-2023-28573 Référence CVE CVE-2023-28581 https://www.cve.org/CVERecord?id=CVE-2023-28581 Référence CVE CVE-2023-28584 https://www.cve.org/CVERecord?id=CVE-2023-28584 Référence CVE CVE-2023-33015 https://www.cve.org/CVERecord?id=CVE-2023-33015 Référence CVE CVE-2023-33016 https://www.cve.org/CVERecord?id=CVE-2023-33016 Référence CVE CVE-2023-33019 https://www.cve.org/CVERecord?id=CVE-2023-33019 Référence CVE CVE-2023-33021 https://www.cve.org/CVERecord?id=CVE-2023-33021 Référence CVE CVE-2023-35658 https://www.cve.org/CVERecord?id=CVE-2023-35658 Référence CVE CVE-2023-35664 https://www.cve.org/CVERecord?id=CVE-2023-35664 Référence CVE CVE-2023-35665 https://www.cve.org/CVERecord?id=CVE-2023-35665 Référence CVE CVE-2023-35666 https://www.cve.org/CVERecord?id=CVE-2023-35666 Référence CVE CVE-2023-35667 https://www.cve.org/CVERecord?id=CVE-2023-35667 Référence CVE CVE-2023-35669 https://www.cve.org/CVERecord?id=CVE-2023-35669 Référence CVE CVE-2023-35670 https://www.cve.org/CVERecord?id=CVE-2023-35670 Référence CVE CVE-2023-35671 https://www.cve.org/CVERecord?id=CVE-2023-35671 Référence CVE CVE-2023-35673 https://www.cve.org/CVERecord?id=

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
13; 12L; 12; 11
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
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 11 Sept 2023 · Last source change 26 Sept 2024, 14:51 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
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-2023-39658
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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

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
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-2023-35658 · cve.blacktree.nl