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ZXUniPOS NDS-LTE EUVDEUVD-2026-32152

| CVE-2026-49002 CRITICAL
Improper Access Control (CWE-284)
2026-05-27 zte GHSA-54c6-h824-3w6w
9.1
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
    Reach exposed ZXUniPOS NDS-LTE interface
  2. Exploit
    Invoke permission-gated function without credentials
  3. Execution
    Bypass missing access-control check
  4. Impact
    Read and modify system configuration data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

Per the CVSS vector (AV:N/AC:L/PR:N/UI:N), no authentication, no user interaction, and no special privileges are required - the limiting prerequisite is network reachability of the ZXUniPOS NDS-LTE interface that exposes the affected, improperly-protected functionality, on a vulnerable build (V24.40.40 / V24.30.40CP02 or earlier). The main factors that limit real-world exploitation are deployment-related rather than technical: ZXUniPOS NDS-LTE is a telecom operator-side platform that is normally segmented inside operator management networks and not internet-facing, so an attacker must already be positioned to reach that interface. Impact is bounded to confidentiality and integrity of configuration data (C:H/I:H); there is no availability impact (A:N), so this does not by itself enable service disruption.

Impact

Signals here are mixed and should be weighed together. CVSS 9.1 is driven by an exposed, low-complexity, unauthenticated network vector (AV:N/AC:L/PR:N/UI:N) with high confidentiality and integrity impact (C:H/I:H) but explicitly no availability impact (A:N), which fits a data-disclosure-and-tampering bug rather than a service-takedown bug. However, EPSS is only 0.03% (9th percentile), it is NOT listed in CISA KEV, and no proof-of-concept is referenced - so despite the high base score, observed/predicted real-world exploitation is currently low. This is most consistent with a genuinely serious but not-yet-weaponized issue: prioritize patching because exploitation prerequisites are minimal, but the absence of KEV/POC and the niche, typically non-internet-facing nature of a telecom operator platform suggest exploitation would be targeted rather than mass/automated. Note one tension to verify: the description speaks generically of 'unauthorized users' (which could read as authenticated-but-over-privileged), while the CVSS vector asserts PR:N (no privileges) - the analysis follows the vendor-provided CVSS, but defenders should confirm with ZTE whether any account is needed.

Exploit ScenarioDerived

An attacker with network access to an exposed ZXUniPOS NDS-LTE interface sends requests directly to permission-gated functions without holding valid credentials, and the missing access-control check allows the requests to succeed. The attacker then reads sensitive configuration data and modifies configuration values, undermining integrity of the platform. No public exploit is identified at time of analysis, and given AV:N/AC:L the action requires no special skill or user interaction once the interface is reachable.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – May 27, 2026

Improper access control in ZTE ZXUniPOS NDS-LTE (V24.40.40 and earlier, and V24.30.40CP02 and earlier) lets remote unauthenticated attackers reach functionality that should be permission-gated, allowing them to read and modify system configuration data beyond their authorization. The CVSS 3.1 base score is 9.1 (AV:N/AC:L/PR:N/UI:N) with high confidentiality and integrity impact but no availability impact, and the issue is tagged as an authentication bypass. EPSS is very low at 0.03% (9th percentile) and there is no public exploit identified at time of analysis.

RemediationAI

Patch available per vendor advisory: consult the ZTE security bulletin at https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/6783201397271515377 and upgrade ZXUniPOS NDS-LTE to the fixed release ZTE specifies (an exact patched version is not stated in the available data, so confirm the target build directly with ZTE rather than assuming one). Because the vulnerable interface is reachable over the network without authentication, until the fixed build is deployed restrict network reachability of the management/administrative interface to trusted operator management networks only (network ACLs / firewall rules limiting source addresses), and place it behind a VPN or jump host so it is not exposed to broader or untrusted segments - the trade-off is added operator-access friction and the need to maintain allowlists. Increase monitoring/audit logging of configuration read and write operations to detect unauthorized access or tampering, accepting the added log volume. These are compensating controls, not a substitute for the vendor patch.

Affected VersionsENISA

ZXUniPOS NDS-LTE V24.40.40 and earlier versions
ZXUniPOS NDS-LTE V24.30.40CP02 and earlier versions

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

ZXUniPOS NDS-LTE is a ZTE telecom/operator-side platform (the CPE cpe:2.3:a:zte:zxunipos_nds-lte identifies it as a ZTE application product). The root cause is classified as CWE-284 (Improper Access Control): the application does not effectively enforce that a requesting user holds the privileges required for a given operation, so authorization checks can be bypassed for sensitive views and writes. Because the vector is AV:N with PR:N, the affected access-control logic is reachable over the network without any valid account, meaning the missing check sits in a network-facing interface (management/web/API surface) rather than behind an authenticated session boundary.

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Severity by source

Vendor (zte) PRIMARY 9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from Vendor (zte) · only source for this CVE.

CVSS VectorVendor: zte

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

DescriptionCVE.org

Access control failure means that an application does not effectively check user access permissions, so that unauthorized users can access system data beyond their permissions, such as viewing and modifying configuration information.

Executive ViewAI

Why It Matters

ZTE ZXUniPOS NDS-LTE installations are exposed to unauthorized remote configuration modification through an authentication bypass, creating immediate risk to network service continuity and data integrity. Organizations operating this telecom equipment cannot apply a vendor patch currently, requiring urgent implementation of network-level protections to prevent unauthorized system access.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: enforce network segmentation isolating ZTE NDS-LTE systems from untrusted networks; restrict administrative interface access via firewall rules and require VPN connectivity; implement real-time monitoring for unauthorized configuration changes; apply zero-trust network access controls; maintain offline backups of system configurations for rapid recovery in case of compromise.

Threat Intelligence Overview

EPSS Score
0.0%
Top 91% exploitable
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 CRITICAL
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
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
Out-of-Cycle
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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