CVE-2026-39454 | Sky SKYSEA Client View/SKYMEC IT Manager Setting default permission

VDB-358296 · CVE-2026-39454 · GCVE-0-2026-39454 SKY SKYSEA CLIENT VIEW/SKYMEC IT MANAGER SETTING DEFAULT PERMISSION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.8 $0-$5k 3.03+ Summaryinfo A vulnerability categorized as critical has been discovered in Sky SKYSEA Client View and SKYMEC IT Manager. This issue affects some unknown processing of the component Setting Handler. The manipulation results in default permission. This vulnerability is identified as CVE-2026-39454. The attack is only possible with local access. There is not any exploit available. Detailsinfo A vulnerability was found in Sky SKYSEA Client View and SKYMEC IT Manager (affected version unknown). It has been classified as critical. Affected is an unknown functionality of the component Setting Handler. The manipulation with an unknown input leads to a default permission vulnerability. CWE is classifying the issue as CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: SKYSEA Client View and SKYMEC IT Manager provided by Sky Co.,LTD. configure the installation folder with improper file access permission settings. A non-administrative user may manipulate and/or place arbitrary files within the installation folder of the product. As a result, arbitrary code may be executed with the administrative privilege. The advisory is shared for download at skyseaclientview.net. This vulnerability is traded as CVE-2026-39454 since 04/08/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/20/2026). The MITRE ATT&CK project declares the attack technique as T1222. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Sky Name SKYMEC IT Manager SKYSEA Client View CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.8 VulDB Meta Temp Score: 7.8 VulDB Base Score: 7.8 VulDB Temp Score: 7.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.8 CNA Vector (jpcert): 🔒 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: Default permission CWE: CWE-276 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No 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 04/08/2026 CVE reserved 04/20/2026 +12 days Advisory disclosed 04/20/2026 +0 days VulDB entry created 04/20/2026 +0 days VulDB entry last update Sourcesinfo Advisory: skyseaclientview.net Status: Confirmed CVE: CVE-2026-39454 (🔒) GCVE (CVE): GCVE-0-2026-39454 GCVE (VulDB): GCVE-100-358296 Entryinfo Created: 04/20/2026 11:52 Changes: 04/20/2026 11:52 (73) Complete: 🔍 Cache ID: 99:A57:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸