Free5gc 3.2.1 - Information Disclosure

Free5gc 3.2.1 is susceptible to information disclosure. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized operations. id: CVE-2022-38870 info: name: Free5gc 3.2.1 - Information Disclosure author: For3stCo1d severity: high description: | Free5gc 3.2.1 ...

CVE-2025-29632

저자: HanyiLuo, Yuqi Huo CVE-2025-29632 CVE-2025-29632로 다루어지는 취약점에 대한 정보 영향을 받는 버전: 4.0.0 및 이전 버전 free5gc가 InitialUEMessage를 처리할 때 nASPDU 참조가 nil인지즉, 널 포인터인지만 확인하고 nASPDU의 내용이 비어 있는지 여부는 검증하지 않습니다. 이로 인해 이후 메시지 파싱 과정에서 nassecurity.DecodePlainNasNoIntegrityChecknASPDU.Value를 호출할 때 빈 바이트 배열이 매개변수로...

CVE-2026-75439

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component...

CVE-2026-75439

Free5GC v4.2.2 is affected by a denial-of-service vulnerability in its UPF (User Plane Function) component, allowing a remote attacker to trigger the DoS. The fix is referenced in PR #97 of the go-upf repository, and the vulnerability was documented in free5gc issue #1059 and 5GCVulDB . No CVSS m...

EUVD-2026-71771

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component...

Drishti: AI-Led Human-Directed Vulnerability Auditing for 5G Cores

Candidate generation for open-source vulnerabilities is no longer scarce. AI-assisted code review now produces defect candidates cheaply, and industry programs pair them with expert human triage. The remaining scarcity is validation and impact assessment, and the gap is largest in...

CVE-2026-55784

creationtimestamp| type| source ---|---|--- 2026-08-29 00:00:57+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mu6l3ppgae27 2026-08-29 00:33:59+00:00| seen| https://bsky.app/profile/termsofsurrender.bsky.social/post/3mu6mwsa5mu2l 2026-08-29 00:35:08+00:00|...

CVE-2026-55785

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

CVE-2026-55784

free5GC is an open-source implementation of the 5G core network. In version 1.4.4 and earlier, the AUSF component stores per-subscriber authentication state in a global sync.Map named AUSFContext.UePool in internal/context/context.go, keyed only by SUPI. Every request handled by...

free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

Summary The AUSF component of free5GC compares authentication response values with normal Go equality helpers instead of constant-time cryptographic comparison functions. Two authentication flows are affected in internal/sbi/processor/ueauthentication.go: 1. 5G-AKA confirmation compares RES and...

GHSA-FP46-6VFW-GC9C free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

Summary The AUSF component of free5GC compares authentication response values with normal Go equality helpers instead of constant-time cryptographic comparison functions. Two authentication flows are affected in internal/sbi/processor/ueauthentication.go: 1. 5G-AKA confirmation compares RES and...

CVE-2026-55785

free5GC's AUSF component (prior to version 1.4.5) performs 5G-AKA cryptographic authentication comparisons in ue_authentication.go using non-constant-time helpers: strings.EqualFold for RES*/XRES* and bytes.Equal for AT_MAC/XMAC. Additionally, the expected XRES* value is logged at INFO level befo...

CVE-2026-55785 free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

CVE-2026-55785 free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

EUVD-2026-68017

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

GHSA-334Q-H5G3-FPXV free5GC AUSF authentication contexts can be overwritten by concurrent requests for the same SUPI

Summary The AUSF component of free5GC stores per-subscriber authentication state in a global sync.Map keyed only by SUPI. Every incoming authentication request creates a new AusfUeContext and stores it under that SUPI key without checking whether an authentication procedure is already in progress...

free5GC AUSF authentication contexts can be overwritten by concurrent requests for the same SUPI

Summary The AUSF component of free5GC stores per-subscriber authentication state in a global sync.Map keyed only by SUPI. Every incoming authentication request creates a new AusfUeContext and stores it under that SUPI key without checking whether an authentication procedure is already in progress...

CVE-2026-55784 free5GC AUSF authentication contexts can be overwritten by concurrent requests for the same SUPI

free5GC is an open-source implementation of the 5G core network. In version 1.4.4 and earlier, the AUSF component stores per-subscriber authentication state in a global sync.Map named AUSFContext.UePool in internal/context/context.go, keyed only by SUPI. Every request handled by...

EUVD-2026-68016

free5GC is an open-source implementation of the 5G core network. In version 1.4.4 and earlier, the AUSF component stores per-subscriber authentication state in a global sync.Map named AUSFContext.UePool in internal/context/context.go, keyed only by SUPI. Every request handled by...

CVE-2026-55784

free5GC is an open-source 5G core network implementation. In versions 1.4.4 and earlier , the AUSF component stores per-subscriber authentication state in a global sync.Map keyed only by SUPI . Because each request unconditionally replaces the active context for that SUPI, an attacker with access...