CVE-2026-1521

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwcs5chandlebearerresourcefailureindication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit ha...

CVE-2026-1521 Open5GS SGWC s5c-handler.c denial of service

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwcs5chandlebearerresourcefailureindication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit ha...

CVE-2026-1521

Open5GS SGWC component: vulnerability in sgwc_s5c_handle_bearer_resource_failure_indication (src/sgwc/s5c-handler.c) can be triggered remotely to cause denial of service. Public exploit exists. Patch available and named 69b53add90a9479d7960b822fc60601d659c328b; apply the official fix to mitigate.

Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for Lte/Nr networks. Versions of Open5GS 2.7.6 and earlier contain security vulnerabilities. These vulnerabilities stem from incorrect operations with the function...

Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for Lte/Nr networks. Versions of Open5GS 2.7.6 and earlier contain security vulnerabilities. These vulnerabilities stem from improper handling of the function...

PT-2026-5141

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.7 Description A flaw exists in Open5GS up to version 2.7.6 that can lead to a denial of service. The issue is located in the sgwc s5c handle modify bearer response function within the src/sgwc/s5c-handler.c file o...

PT-2026-5127

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc s5c handle bearer resource failure indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The...

CVE-2026-0622 Open 5GS WebUI uses a hard-coded JWT signing key

Open 5GS WebUI uses a hard-coded JWT signing key change-me whenever the environment variable JWTSECRETKEY is unset...

CVE-2026-0622

Open5GS WebUI is affected by CVE-2026-0622: by default it uses hard-coded JWT signing keys (the string change-me) when JWT_SECRET_KEY is unset, allowing an unauthenticated network attacker to forge JWTs and gain access to protected WebUI endpoints (notably under /api/db/*). The issue arises from ...

CVE-2026-0622 Open 5GS WebUI uses a hard-coded JWT signing key

Open 5GS WebUI uses a hard-coded JWT signing key change-me whenever the environment variable JWTSECRETKEY is unset...

CVE-2025-15539

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...

Open5GS WebUI uses a hard-coded secrets including JSON Web Token signing key

Overview The Open5GS WebUI component contains default hardcoded secrets used for security-sensitive operations, including JSON Web Token JWT signing. If these defaults are not changed, an attacker can forge valid authentication tokens and gain administrative access to the WebUI. This can result i...

Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for Lte/Nr networks. Open5GS has a security vulnerability, which stems from the use of a hardcoded JWT signing key...

CVE-2025-15539

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...

Open5GS security vulnerabilities

Open5GS is an open-source implementation of 5G Core and EPC in C language, which serves as the core network for LTE/NR networks. Versions of Open5GS 2.7.6 and earlier contain security vulnerabilities. These vulnerabilities stem from a flaw in the sgwcs11handler.c file, specifically the...

CVE-2025-15539

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...

CVE-2025-15539

Open5GS up to 2.7.6 is affected by a Denial of Service vulnerability in the sgwc component. The issue is in the function sgwc_s11_handle_downlink_data_notification_ack (src/sgwc/s11-handler.c), which can be triggered remotely. The exploit has been publicly disclosed and may be utilized. Red Hat a...

CVE-2025-15539 Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...

CVE-2025-15539 Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...

CVE-2025-15539 Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwcs11handledownlinkdatanotificationack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly...