OpenHarmony up to 3.1.2 appspawn/nwebspawn path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical was found in OpenHarmony up to 3.1.2. Affected by this vulnerability is an unknown functionality of the component appspawn/nwebspawn. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

OpenHarmony-v3.1.2 and prior versions had an Multiple path traversal vulnerability in appspawn and nwebspawn services. Local attackers can create arbitrary directories or escape application sandbox.If chained with other vulnerabilities it would allow an unprivileged process to gain full root privileges.

The weakness was released 11/04/2022. The advisory is shared at This vulnerability is known as CVE-2022-43451 since 10/31/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

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




  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 8.4
CNA Vector (OpenHarmony): 🔒



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


Class: Path traversal
ATT&CK: T1006

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒


10/31/2022 CVE reserved
11/04/2022 +4 days Advisory disclosed
11/04/2022 +0 days VulDB entry created
12/04/2022 +30 days VulDB last update


Status: Not defined

CVE: CVE-2022-43451 (🔒)


Created: 11/04/2022 07:29 AM
Updated: 12/04/2022 02:14 PM
Changes: 11/04/2022 07:29 AM (37), 12/04/2022 02:14 PM (22)
Complete: 🔍


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