CVE-2026-33192 | Free5GC up to 1.4.1 PATCH Request information exposure

VDB-352031 · CVE-2026-33192 · GCVE-0-2026-33192 FREE5GC UP TO 1.4.1 PATCH REQUEST INFORMATION EXPOSURE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 1.35+ Summaryinfo A vulnerability, which was classified as problematic, has been found in Free5GC up to 1.4.1. This impacts an unknown function of the component PATCH Request Handler. The manipulation leads to information exposure. This vulnerability is documented as CVE-2026-33192. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in Free5GC up to 1.4.1 and classified as problematic. This issue affects an unknown functionality of the component PATCH Request Handler. The manipulation with an unknown input leads to a information exposure vulnerability. Using CWE to declare the problem leads to CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. Impacted is availability. The summary by CVE is: Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. In versions prior to 1.4.2, the UDM incorrectly converts a downstream 400 Bad Request (from UDR) into a 500 Internal Server Error when handling PATCH requests with an empty supi path parameter. Additionally, the UDM incorrectly translates the PATCH method to PUT when forwarding to UDR, indicating a deeper architectural issue. This leaks internal error handling behavior, making it difficult for clients to distinguish between client-side errors and server-side failures. The issue has been patched in version 1.4.2. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-33192 since 03/17/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. Upgrading to version 1.4.2 eliminates this vulnerability. Productinfo Name Free5GC Version 1.4.0 1.4.1 Website Product: https://github.com/free5gc/free5gc/ 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: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 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: Information exposure CWE: CWE-209 / CWE-200 / CWE-284 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes 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: Free5GC 1.4.2 Timelineinfo 03/17/2026 CVE reserved 03/20/2026 +3 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-33192 (🔒) GCVE (CVE): GCVE-0-2026-33192 GCVE (VulDB): GCVE-100-352031 Entryinfo Created: 03/20/2026 10:01 Changes: 03/20/2026 10:01 (65) Complete: 🔍 Cache ID: 99:5D7:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸