VDB-315079 · CVE-2025-53179 · EUVD-2025-20165

Huawei HarmonyOS 5.0.1/5.1.0 PDF Preview heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$5k-$25k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Huawei HarmonyOS 5.0.1/5.1.0. The affected element is an unknown function of the component PDF Preview Module. This manipulation causes heap-based overflow. The identification of this vulnerability is CVE-2025-53179. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Huawei HarmonyOS 5.0.1/5.1.0. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component PDF Preview Module. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect availability. The summary by CVE is:

Null pointer dereference vulnerability in the PDF preview module Impact: Successful exploitation of this vulnerability may affect function stability.

It is possible to read the advisory at consumer.huawei.com. This vulnerability is known as CVE-2025-53179 since 06/27/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/07/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-20165). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Huawei

Name

HarmonyOS

Version

License

commercial

Website

Vendor: https://www.huawei.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (huawei): 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/27/2025 CVE reserved
07/07/2025 +10 days Advisory disclosed
07/07/2025 +0 days VulDB entry created
07/07/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2025-53179 (🔒)
GCVE (CVE): GCVE-0-2025-53179
GCVE (VulDB): GCVE-100-315079
EUVD: 🔒

Entryinfo

Created: 07/07/2025 07:46
Updated: 07/07/2025 08:15
Changes: 07/07/2025 07:46 (63), 07/07/2025 08:15 (1)
Complete: 🔍
Cache ID: 216::103