CVE-2026-49303: CWE-264 Permissions, Privileges, and Access Controls in Huawei HarmonyOS
CVE-2026-49303 is a permission control vulnerability in the notification module of Huawei HarmonyOS. Exploiting this flaw may impact system availability. The vulnerability has a medium severity rating with a CVSS score of 5.1. It affects specific versions of HarmonyOS including 4.3.1, 4.3.0, 4.2.0, 4.0.0, 15.0.0, 14.2.0, and 14.0.0. No known exploits are reported in the wild, and no patch information is provided.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-49303) in Huawei HarmonyOS involves improper permission control within the notification module, categorized under CWE-264 (Permissions, Privileges, and Access Controls). Successful exploitation could lead to a denial of service or availability impact. The CVSS 3.1 vector indicates local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and high availability impact (A:L). The affected versions are explicitly listed, but no official patch or remediation details are provided.
Potential Impact
The impact of this vulnerability is primarily on system availability, potentially causing denial of service conditions if exploited. There is no confidentiality impact, and integrity impact is low. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor Huawei's advisories for updates. Until a patch is available, restricting local access to trusted users and minimizing exposure of the notification module may reduce risk.
CVE-2026-49303: CWE-264 Permissions, Privileges, and Access Controls in Huawei HarmonyOS
Description
CVE-2026-49303 is a permission control vulnerability in the notification module of Huawei HarmonyOS. Exploiting this flaw may impact system availability. The vulnerability has a medium severity rating with a CVSS score of 5.1. It affects specific versions of HarmonyOS including 4.3.1, 4.3.0, 4.2.0, 4.0.0, 15.0.0, 14.2.0, and 14.0.0. No known exploits are reported in the wild, and no patch information is provided.
CVSS v3.1
Score 5.1medium
Affected software
Huawei
HarmonyOS
Huawei
EMUI
pkg:github/huawei/harmonyosRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-49303) in Huawei HarmonyOS involves improper permission control within the notification module, categorized under CWE-264 (Permissions, Privileges, and Access Controls). Successful exploitation could lead to a denial of service or availability impact. The CVSS 3.1 vector indicates local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and high availability impact (A:L). The affected versions are explicitly listed, but no official patch or remediation details are provided.
Potential Impact
The impact of this vulnerability is primarily on system availability, potentially causing denial of service conditions if exploited. There is no confidentiality impact, and integrity impact is low. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor Huawei's advisories for updates. Until a patch is available, restricting local access to trusted users and minimizing exposure of the notification module may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- huawei
- Date Reserved
- 2026-05-29T03:16:14.062Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a82d167bf8831d5399901b9
Added to database: 08/17/2026, 09:16:23 UTC
Last enriched: 09/12/2026, 01:49:10 UTC
Last updated: 10/02/2026, 02:46:04 UTC
Views: 77
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