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ZTE Z80 Ultra EUVDEUVD-2026-96042

| CVE-2026-108501 MEDIUM
Improper Privilege Management (CWE-269)
2026-10-10 zte GHSA-45c7-xqg2-33wv
5.7
CVSS 3.1 · Vendor: zte
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Install or run malicious app on device
  2. Exploit
    Reflectively invoke unprotected system interface
  3. Impact
    Read sensitive information without authorization

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires code execution on the device itself - specifically a local app able to use reflection to call the affected system interface, which lacks the access-control check that should gate it. Limiting factors: the victim must install/run the attacker-controlled app (UI:R in the vendor vector), the issue is confined to the ZTE Z80 Ultra model, and impact is read-only information disclosure (C:H, I:N, A:N) with no integrity or availability effect. Note the description implies local on-device access even though the vendor vector lists AV:A (adjacent).

Impact

This is a moderate-severity information-disclosure issue (CVSS 5.7) in the ZTE Z80 Ultra (nubia Z80 Ultra) smartphone, where a system interface lacks access control and can be reflectively invoked to read otherwise-protected information. The CVSS vector (AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) indicates confidentiality-only impact with no integrity or availability effect, which tempers the CWE-269/'Privilege Escalation' framing - in practice this reads as unauthorized data read rather than full privilege takeover. There is NO EPSS score, NO CISA KEV listing, and NO public POC provided in the input, so there is no public exploit identified at time of analysis and no evidence of active or widespread exploitation. A key conflict must be flagged: the CVSS attack vector is AV:A (adjacent network), but the description ('reflectively invoking the interface') strongly implies a local, on-device malicious app rather than a network-adjacent attacker - verify the true vector with ZTE before treating this as remotely reachable. Overall this is a real but low-to-moderate priority fix: confidentiality-only, device-specific, and lacking any exploitation signal.

Exploit ScenarioDerived

A malicious or over-privileged application installed on a ZTE Z80 Ultra uses Java/Android reflection to directly invoke an exported system interface that fails to enforce access control, reading sensitive information it should not be able to access. No public exploit code is identified at time of analysis, and the attack requires the victim to have installed the hostile app (user interaction), limiting opportunistic abuse.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 10, 2026

Information disclosure in ZTE Z80 Ultra (nubia Z80 Ultra) smartphones allows a local app to reflectively invoke a system interface that lacks the necessary access-control check and read otherwise-protected information, with no integrity or availability impact. The vendor rates this CVE-2026-108501 at CVSS 5.7 (AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N), while the independent assessment treats it as a local, unauthenticated information-disclosure issue (CVSS 3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) that requires code execution on the device via an attacker-controlled app. No public exploit code or confirmed active exploitation was identified at time of analysis, and the issue is confined to the ZTE Z80 Ultra model.

RemediationAI

No vendor-released patch version is identified in the provided data; the primary action is to check the ZTE support bulletin at https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/1450988451697172601 and apply any ZTE-released firmware update for the ZTE Z80 Ultra as soon as it is available. Because exploitation requires a local app to reflectively invoke the unprotected system interface, practical compensating controls focus on preventing untrusted on-device code execution: restrict users from side-loading or installing apps outside managed/approved stores, use Google Play Protect or an MDM/enterprise app catalog to allow only vetted applications, and consider disabling developer options and USB debugging where feasible. These controls trade off user flexibility and may not stop a malicious pre-installed or privileged app, but they reduce the attack surface until a firmware fix is available; blocking network ports or disabling remote services is not an effective mitigation because the assessed attack path is local on the device.

Affected VersionsENISA

ZTE Z80 Ultra GEN_ZTE_PQ85A01V1.0.0B27 and prior released versions

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is CWE-269 (Improper Privilege Management): a ZTE Z80 Ultra system interface does not enforce the access-control check that should gate it, so an app already running on the device can use Java/Android reflection to reach the interface and read information that should be restricted. The affected product is identified by CPE cpe:2.3:a:zte:zte_z80_ultra:*:*:*:*:*:*:*:*, covering the ZTE Z80 Ultra (nubia Z80 Ultra) line without a narrower version range in the available data. The vendor CVSS vector describes adjacent-network access (AV:A) with user interaction (UI:R), but the independent assessment places the practical attack vector at local (AV:L) because exploitation requires on-device code execution and reflective invocation rather than a purely network-reachable path; either way, the vulnerability class is missing authorization on a privileged system interface, and the resulting impact is read-only confidentiality loss (C:H, I:N, A:N).

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Severity by source

Vendor (zte) PRIMARY 5.7 MEDIUM
AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
vuln.today AI 6.2 MEDIUM

Reflective invocation by an on-device app is local (AV:L) and needs no special privilege or interaction (PR:N/UI:N); impact is confidentiality-only, so I:N and A:N.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (zte).

CVSS VectorVendor: zte

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

ZTE Z80 Ultra has a system interface permission verification defect. The interface lacks necessary access control, and relevant information can be read by reflectively invoking the interface.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
Low
single ZTE/nubia flagship phone model, limited mostly to China market
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Controlled
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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