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Emui EUVDEUVD-2025-20168

| CVE-2025-53177 LOW
Permissions, Privileges, and Access Controls (CWE-264)
2025-07-07 psirt@huawei.com
Privilege Escalation Emui Harmonyos Huawei
3.9
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-264
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
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.

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Impact

An attacker with limited access can gain administrative or root privileges, enabling full control over the affected system. With a CVSS score of 3.9 (LOW), this represents a low risk.
Exploit ScenarioDerived

A local attacker exploits a vulnerability in a privileged service or misconfigured permissions to escalate from a standard user to root/administrator.
Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Permission bypass vulnerability in the calendar storage module Impact: Successful exploitation of this vulnerability may affect the schedule syncing function of watches.

Earlier versions of this analysis (1)
v1 Mar 16, 2026 - 03:37 CVSS 3.9

RemediationAI

Apply the principle of least privilege. Keep systems patched. Monitor for suspicious privilege changes. Use mandatory access controls (SELinux, AppArmor).

Affected VersionsENISA

HarmonyOS 4.0.0
HarmonyOS 4.2.0
EMUI 14.0.0
HarmonyOS 4.3.0

Affected Packages

euvd emui no fix
euvd harmonyos no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

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

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Technical ContextAI · show details

Privilege escalation allows a low-privileged user or process to gain elevated permissions beyond what was originally authorized. This vulnerability is classified as Permissions, Privileges, and Access Controls (CWE-264).

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 3.9 LOW
AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Executive ViewAI

Why It Matters

CVE-2025-53177 is a low-severity vulnerability (CVSS 3.9). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. Apply vendor updates when available as part of routine maintenance.

Business Impact: Low
Compensating Controls

Apply vendor patch during routine maintenance. Standard security controls provide adequate interim protection.

Threat Intelligence Overview

EPSS Score
0.0%
Top 99% exploitable
Data Quality
4 sources
Confidence: Medium
EUVD NVD CVE.org EPSS

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 LOW
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

20
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +20
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

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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References

Advisories & patches
ADVISORY https://consumer.huawei.com/en/support/bulletin/2025/7/ ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-53177

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