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Vulnerability Assessment

Weakness
CWE
CWE-401
ASVS 5.0
V15 - Secure Coding and Architecture Resource cleanup, leak prevention
Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could exhaust available memory leading to denial of service by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAI

Some Huawei products have a memory leak vulnerability when handling some messages. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Ensure all allocated memory is properly freed. Use RAII patterns or garbage-collected languages.

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Technical ContextAI · show details

This vulnerability is classified as Memory Leak (CWE-401), which allows attackers to exhaust available memory leading to denial of service. Some Huawei products have a memory leak vulnerability when handling some messages. A remote attacker with operation privilege could exploit the vulnerability by sending specific messages continuously. Successful exploit may cause some service to be abnormal. Affected products include: Huawei Ar120-S Firmware, Huawei Ar1200 Firmware, Huawei Ar1200-S Firmware, Huawei Ar150 Firmware, Huawei Ar150-S Firmware.

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionNVD

Some Huawei products have a memory leak vulnerability when handling some messages. A remote attacker with operation privilege could exploit the vulnerability by sending specific messages continuously. Successful exploit may cause some service to be abnormal.

Threat Intelligence Overview

EPSS Score
0.9%
Top 45% exploitable
Data Quality
2 sources
Confidence: Low
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.9%
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· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:o:huawei:ar120-s_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar120-s_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar1200_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar1200_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar1200-s_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar1200-s_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar150_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar150_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar150-s_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar150-s_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar160_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar160_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar200_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar200_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar200-s_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar200-s_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar2200_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar2200_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar2200-s_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar2200-s_firmware:v200r006c10:*:*:*:*:*:*:*
+ 11 more

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AC6005 V200R006C10SPC200,AC6605 V200R006C10SPC200,AR1200 with software V200R005C10CP0582T, V200R005C10HP0581T, V200R005C
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There is a digital signature verification bypass vulnerability in AR1200, AR1200-S, AR150, AR160, AR200, AR2200, AR2200-
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Huawei AR3200 routers with software before V200R006C10SPC300 allow remote authenticated users to cause a denial of servi

Same weakness CWE-401 – Memory Leak

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CVE-2020-13934 HIGH
7.5
CVE-2016-4232 HIGH POC
7.5
CVE-2024-25450 HIGH POC
8.8
CVE-2023-33718 HIGH POC
8.8
CVE-2019-6128 HIGH POC
8.8
CVE-2026-67183 HIGH POC
8.7
CVE-2023-34451 HIGH POC
8.2
CVE-2020-6079 HIGH POC
7.5

Same technique Information Disclosure

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CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
ADVISORY http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191023-01-memory-en

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