Free5GC AMF Bypasses UE Security Capabilities on NGAP PathSwitchRequest

Summary The AMF in Free5GC v4.2.1 does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values, as mandated by 3GPP TS 33.501 §6.7.3.1. A malicious gNB can overwrite the AMF's stored UE security capabilities with arbitrary values, whic...

PT-2026-38366

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Access and Mobility Management Function AMF in free5GC fails to verify UE Security Capabilities received in NGAP PathSwitchRequest messages against locally stored values. This occurs within the...

EUVD-2026-27768

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: validate numifs to prevent out-of-bounds write The driver obtains swattr.numifs from firmware via dpswgetattributes but never validates it against DPSWMAXIF 64. This value controls iteration in...

CVE-2026-32320

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send...

CVE-2026-32320

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send...

GO-2026-4691 Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings in github.com/ellanetworks/core

Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings in github.com/ellanetworks/core...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read through the processing of a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings. An attacker can cause the process to crash and disrupt...

CVE-2026-32320 Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send...

CVE-2026-32320 Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send...

CVE-2026-32320 Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings

Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. An attacker able to send...

CVE-2026-32320

Ella Core (5G private-net core) is affected by a DoS when processing a PathSwitchRequest that contains UE Security Capabilities with zero-length NR encryption or integrity protection bitstrings. The issue can crash the process via crafted NGAP messages, leading to service disruption for all conne...

GHSA-J478-P7VQ-3347 Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings

Summary Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. Impact An attacker able to send crafted NGAP messages to Ella Core can crash the process,...

Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings

Summary Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. Impact An attacker able to send crafted NGAP messages to Ella Core can crash the process,...

EUVD-2026-11724

Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings...

PT-2025-23617 · Open5Gs · Open5Gs

Name of the Vulnerable Software and Affected Versions: Open5GS versions up to 2.7.3 Description: A vulnerability was found in the function ngap handle path switch request transfer of the file src/smf/ngap-handler.c of the component NGAP PathSwitchRequest Message Handler. The manipulation leads to...

PT-2025-1407 · Open5Gs · Open5Gs Mme

Name of the Vulnerable Software and Affected Versions: Open5GS MME versions = 2.6.4 Description: The issue concerns an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a Path Switch Request message missing a required MME UE S1AP I...

SUSE CVE-2017-1000112

Linux kernel: Exploitable memory corruption due to UFO to non-UFO path switch. When building a UFO packet with MSGMORE ipappenddata calls ipufoappenddata to append. However in between two send calls, the append path can be switched from UFO to non-UFO one, which leads to a memory corruption. In...

kernel: Exploitable memory corruption due to UFO to non-UFO path switch

An exploitable memory corruption flaw was found in the Linux kernel. The append path can be erroneously switched from UFO to non-UFO in ipufoappenddata when building an UFO packet with MSGMORE option. If unprivileged user namespaces are available, this flaw can be exploited to gain root privilege...

kernel: Exploitable memory corruption due to UFO to non-UFO path switch

An exploitable memory corruption flaw was found in the Linux kernel. The append path can be erroneously switched from UFO to non-UFO in ipufoappenddata when building an UFO packet with MSGMORE option. If unprivileged user namespaces are available, this flaw can be exploited to gain root privilege...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...