BlackTreeCVE Intelligence
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Full vulnerability report · 2023
CVE-2022-39071High confidence

There is an unauthorized access vulnerability in some ZTE mobile phones

Unknown · ZTE Blade A52, ZTE Blade A51, ZTE Blade A3 Lite, ZTE Blade A5 2020, ZTE Blade L210, ZTE Blade A7s, ZTE Blade A31, ZTE Blade A31 Plus, ZTE Blade A5 (2019), ZTE Blade A71, ZTE Blade A72, ZTE Blade V20 Smart, ZTE Blade V30, ZTE Blade V30 Vita, ZTE V40 Pro, ZTE Blade V40 Vita, ZTE Axon 40 Ultra

7.1HighCVSS 3.1
Recommended action
Within 7 days

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

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.30% for the current model date.

Compensating controls

  • 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 Unknown ZTE Blade A52, ZTE Blade A51, ZTE Blade A3 Lite, ZTE Blade A5 2020, ZTE Blade L210, ZTE Blade A7s, ZTE Blade A31, ZTE Blade A31 Plus, ZTE Blade A5 (2019), ZTE Blade A71, ZTE Blade A72, ZTE Blade V20 Smart, ZTE Blade V30, ZTE Blade V30 Vita, ZTE V40 Pro, ZTE Blade V40 Vita, ZTE Axon 40 Ultra and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  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: Within 30 daysRemediation target: Within 180 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-2022-41617

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.

Fix not verified
01

What, why and how

There is an unauthorized access vulnerability in some ZTE mobile phones. If a malicious application is installed on the phone, it could overwrite some system configuration files and user installers without user permission.

What

There is an unauthorized access vulnerability in some ZTE mobile phones. If a malicious application is installed on the phone, it could overwrite some system configuration files and user installers without user permission.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

There is an unauthorized access vulnerability in some ZTE mobile phones. If a malicious application is installed on the phone, it could overwrite some system configuration files and user installers without user permission.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. 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 → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
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.
CWE not yet assigned
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:N/UI:R/S:U/C:N/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.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.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.
Unauthenticated
A

Official authority intelligence

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

Cyber Security Agency of Singapore · English · CSA-SB-20230531Security Bulletin 31 May 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 31 May 2023, published on 31 May 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-023037複数の ZTE 製品における脆弱性

Blade A52 ファームウェア、Blade A51 ファームウェア、Blade A3 Lite ファームウェア等複数の ZTE 製品には、不特定の脆弱性が存在します。

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
ZTE Blade A52, ZTE Blade A51, ZTE Blade A3 Lite, ZTE Blade A5 2020, ZTE Blade L210, ZTE Blade A7s, ZTE Blade A31, ZTE Blade A31 Plus, ZTE Blade A5 (2019), ZTE Blade A71, ZTE Blade A72, ZTE Blade V20 Smart, ZTE Blade V30, ZTE Blade V30 Vita, ZTE V40 Pro, ZTE Blade V40 Vita, ZTE Axon 40 Ultra: All versions up to Z6356T_M01, All versions up to Blade A51_M06, All versions up to Blade A30_M08, All versions up to Blade A5 2020-T_M04, All versions up to GEN_MY_L210_V1.13, All versions up to CLA_GT_A7020_V2.1, All versions up to Blade A31_M02, All versions up to P600_M03, All versions up to P650 Pro_M12, All versions up to GEN_EU_EEA_A7030_V2.3, All versions up to MyOS11.0.2_A7039_CLA_CO, All versions up to TEL_MX_ZTE_8010V1.13, All versions up to TEL_MX_ZTE_9030V1.10, All versions up to TEL_MX_ZTE_8030V1.10, All versions up to MyOS11.0.3_9045_TEL All versions up to MyOS11.0.1_8044_CLA_CO, All versions up to NON_EEA_P898F01V1.0.0B25
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 30 May 2023 · Last source change 13 Jan 2025, 20:40 UTC · CWE not yet assigned

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-2022-41617
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification, affected product. 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
ENISA EUVD · EUVD-2022-41617↗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-2022-39071 · cve.blacktree.nl