CVE-2026-34867 | Huawei HarmonyOS 5.1.0/6.0.0 double free

VDB-357075 · CVE-2026-34867 · GCVE-0-2026-34867 HUAWEI HARMONYOS 5.1.0/6.0.0 DOUBLE FREE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.7 $5k-$25k 0.19+ Summaryinfo A vulnerability was found in Huawei HarmonyOS 5.1.0/6.0.0. It has been classified as problematic. This issue affects some unknown processing. Performing a manipulation results in double free. This vulnerability is known as CVE-2026-34867. Attacking locally is a requirement. No exploit is available. Detailsinfo A vulnerability classified as problematic has been found in Huawei HarmonyOS 5.1.0/6.0.0. This affects an unknown code block. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on integrity, and availability. The summary by CVE is: Double free vulnerability in the multi-mode input system. Impact: Successful exploitation of this vulnerability may affect availability. It is possible to read the advisory at consumer.huawei.com. This vulnerability is uniquely identified as CVE-2026-34867 since 03/31/2026. The exploitability is told to be easy. Attacking locally is a requirement. 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 04/13/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Smartphone Operating System Vendor Huawei Name HarmonyOS Version 5.1.0 6.0.0 License commercial Website Vendor: https://www.huawei.com/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.7 VulDB Meta Temp Score: 4.7 VulDB Base Score: 3.9 VulDB Temp Score: 3.9 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.6 CNA Vector (huawei): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Double free CWE: CWE-415 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: Partially Availability: 🔒 Status: Not defined 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 03/31/2026 CVE reserved 04/13/2026 +13 days Advisory disclosed 04/13/2026 +0 days VulDB entry created 04/13/2026 +0 days VulDB entry last update Sourcesinfo Vendor: huawei.com Advisory: consumer.huawei.com Status: Confirmed CVE: CVE-2026-34867 (🔒) GCVE (CVE): GCVE-0-2026-34867 GCVE (VulDB): GCVE-100-357075 Entryinfo Created: 04/13/2026 07:39 Changes: 04/13/2026 07:39 (61) Complete: 🔍 Cache ID: 99:913:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸