CVE-2026-1636 | Lenovo Service Bridge 4/4.1.0.1/5.0.2.17 uncontrolled search path

VDB-357722 · CVE-2026-1636 · GCVE-0-2026-1636 LENOVO SERVICE BRIDGE 4/4.1.0.1/5.0.2.17 UNCONTROLLED SEARCH PATH HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.7 $0-$5k 2.66+ Summaryinfo A vulnerability categorized as problematic has been discovered in Lenovo Service Bridge. This affects an unknown part. Such manipulation leads to uncontrolled search path. This vulnerability is uniquely identified as CVE-2026-1636. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in Lenovo Service Bridge. It has been rated as critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. Using CWE to declare the problem leads to CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. Impacted is confidentiality, integrity, and availability. CVE summarizes: A potential DLL hijacking vulnerability was reported in Lenovo Service Bridge that, under certain conditions, could allow a local authenticated user to execute code with elevated privileges. The weakness was disclosed by Victor Rodriguez. The advisory is available at support.lenovo.com. This vulnerability is handled as CVE-2026-1636 since 01/29/2026. The exploitation is known to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1574 by the MITRE ATT&CK project. Upgrading to version 5.0.2.20 eliminates this vulnerability. Productinfo Vendor Lenovo Name Service Bridge Version 4 4.1.0.1 5.0.2.17 License commercial Website Vendor: https://www.lenovo.com/ 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: 6.9 VulDB Meta Temp Score: 6.7 VulDB Base Score: 7.0 VulDB Temp Score: 6.7 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.7 CNA Vector (lenovo): 🔒 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: Uncontrolled search path CWE: CWE-427 / CWE-426 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: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Service Bridge 5.0.2.20 Timelineinfo 01/29/2026 CVE reserved 04/15/2026 +75 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Vendor: lenovo.com Advisory: support.lenovo.com Researcher: Victor Rodriguez Status: Confirmed CVE: CVE-2026-1636 (🔒) GCVE (CVE): GCVE-0-2026-1636 GCVE (VulDB): GCVE-100-357722 Entryinfo Created: 04/15/2026 16:06 Changes: 04/15/2026 16:06 (76) Complete: 🔍 Cache ID: 99:08B:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸