PT-2026-108928

Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs pfcp parse volume measurement in lib/pfcp/types.c that allows remote unauthenticated attackers to read past IE buffers. Attackers can send a PFCP Session Report Request to the SMF on UDP port 8805 with a short, all-flag...

PT-2026-108929

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.8.1 Description A heap out-of-bounds read occurs in the ogs pfcp parse dropped dl traffic threshold function. Remote unauthenticated attackers can read past Information Element IE buffers by sending short IEs. This ...

CVE-2026-20121

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

CVE-2026-20121 CIsco FTD Bypass Access List

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

CVE-2026-20121 CIsco FTD Bypass Access List

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

EUVD-2026-81153

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

CVE-2026-20120

CVE-2026-20120 affects the ACL Object Group Search (OGS) implementation in Cisco Secure Firewall ASA and FTD Software. A logic error in how group access control policies (ACPs) are populated when OGS is configured allows an unauthenticated, remote attacker to send traffic that should be blocked t...

PT-2026-93893

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.8.1 Description A remote attack can cause a null pointer dereference in the PFCP Handler component. This occurs within the ogs pfcp parse volume measurement function located in the lib/pfcp/types.c library. A null...

CVE-2026-20120: Improper Access Control

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

PT-2026-86256

Buffer Overflow vulnerability in Open5GS v2.7.7 allows a remote attacker to cause a denial of service via the ogs sbi time parse function...

OSV-2026-970 Use-of-uninitialized-value in ogs_cpystrn

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=527978938 Crash type: Use-of-uninitialized-value Crash state: ogscpystrn ogsnas5gsdecodednn ogsnas5gsdecodepdusessionestablishmentaccept...

CVE-2026-7708

A vulnerability was determined in Open5GS up to 2.7.7. The affected element is the function ogsdbisubscriptiondata in the library /lib/dbi/subscription.c of the component UDR. This manipulation of the argument supiid causes denial of service. The attack may be initiated remotely. The exploit has...

nghttp2-server Heap Buffer Overflow DoS

The vulnerability of the ogspoolidcalloc function in the library /lib/sbi/nghttp2-server.c, which is used for creating and managing mobile networks like NR/LTE Open5GS, is related to improper cleanup or release of resources. Exploiting this vulnerability could allow a malicious actor to cause...

CVE-2026-10116

A security flaw has been discovered in Open5GS up to 2.7.7. This vulnerability affects the function ogssbixactadd in the library /lib/core/ogs-timer.c of the component ue-authentications Endpoint. Performing a manipulation results in denial of service. The attack may be initiated remotely. The...

CVE-2026-10117 Open5GS nghttp2-server.c ogs_pool_id_calloc denial of service

A weakness has been identified in Open5GS up to 2.7.7. This issue affects the function ogspoolidcalloc in the library /lib/sbi/nghttp2-server.c. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been made available to the public and could...

CVE-2026-10117

A weakness has been identified in Open5GS up to 2.7.7. This issue affects the function ogspoolidcalloc in the library /lib/sbi/nghttp2-server.c. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been made available to the public and could...

CVE-2026-10117 Open5GS nghttp2-server.c ogs_pool_id_calloc denial of service

A weakness has been identified in Open5GS up to 2.7.7. This issue affects the function ogspoolidcalloc in the library /lib/sbi/nghttp2-server.c. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been made available to the public and could...

CVE-2026-10116

Technical details are not publicly available in the provided documents. Monitor for updates. The description notes a denial‑of‑service vulnerability in Open5GS (ogs_sbi_xact_add in ogs-timer.c).

CVE-2026-10116 Open5GS ue-authentications Endpoint ogs-timer.c ogs_sbi_xact_add denial of service

A security flaw has been discovered in Open5GS up to 2.7.7. This vulnerability affects the function ogssbixactadd in the library /lib/core/ogs-timer.c of the component ue-authentications Endpoint. Performing a manipulation results in denial of service. The attack may be initiated remotely. The...

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 2.7.7 and earlier contain security vulnerabilities. These vulnerabilities stem from the ue-authentications Endpoint component’s ogssbixactadd...