Huawei HarmonyOS 5.1.0 SSAP out-of-bounds

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.
6.1$5k-$25k0.00

Summaryinfo

A vulnerability was found in Huawei HarmonyOS 5.1.0 and classified as critical. This impacts an unknown function of the component SSAP Module. Executing a manipulation can lead to out-of-bounds. This vulnerability is registered as CVE-2025-54647. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability has been found in Huawei HarmonyOS 5.1.0 and classified as critical. This vulnerability affects an unknown code of the component SSAP Module. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Out-of-bounds read vulnerability in the SSAP module of the NearLink protocol stack. Impact: Successful exploitation of this vulnerability may affect availability.

The advisory is available at consumer.huawei.com. This vulnerability was named CVE-2025-54647 since 07/28/2025. The exploitation appears to be easy. The attack needs to be initiated within the local network. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/14/2025).

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

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 5.4
CNA Vector (huawei): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/28/2025 CVE reserved
08/06/2025 +9 days Advisory disclosed
08/06/2025 +0 days VulDB entry created
08/14/2025 +8 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2025-54647 (🔒)
GCVE (CVE): GCVE-0-2025-54647
GCVE (VulDB): GCVE-100-318910

Entryinfo

Created: 08/06/2025 08:02
Updated: 08/14/2025 08:29
Changes: 08/06/2025 08:02 (63), 08/07/2025 05:19 (1), 08/14/2025 08:29 (11)
Complete: 🔍
Cache ID: 216::103

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