Open5gs: >> Open5gs Security Vulnerabilities
A weakness has been identified in Open5GS up to 2.7.6. Affected by this issue is the function sgwc_s5c_handle_create_session_response of the file src/sgwc/s5c-handler.c of the component GTPv2-C Flow Handler. Executing a manipulation can lead to denial of service. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 5aaa09907e7b9e0a326265a5f08d56f54280b5f2. It is advisable to implement a patch to correct this issue.
CVSS Score
3.3
EPSS Score
0.0
Published
2026-01-02
A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function ogs_gtp2_parse_bearer_qos in the library lib/gtp/v2/types.c of the component Bearer QoS IE Length Handler. Performing manipulation results in denial of service. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is named 4e913d21f2c032b187815f063dbab5ebe65fe83a. To fix this issue, it is recommended to deploy a patch.
CVSS Score
3.3
EPSS Score
0.0
Published
2026-01-02
A vulnerability was identified in Open5GS up to 2.7.6. Affected is the function sgwc_s11_handle_create_session_request of the file src/sgwc/s11-handler.c of the component GTPv2-C F-TEID Handler. Such manipulation leads to denial of service. The attack must be carried out locally. The exploit is publicly available and might be used. The name of the patch is 465273d13ba5d47b274c38c9d1b07f04859178a1. A patch should be applied to remediate this issue.
CVSS Score
3.3
EPSS Score
0.0
Published
2026-01-01
A flaw has been found in Open5GS up to 2.7.5. This affects the function decode_ipv6_header/ogs_pfcp_pdr_rule_find_by_packet of the file lib/pfcp/rule-match.c of the component PFCP Session Establishment Request Handler. Executing manipulation can lead to reachable assertion. It is possible to launch the attack remotely. The exploit has been published and may be used. This patch is called b72d8349980076e2c033c8324f07747a86eea4f8. Applying a patch is advised to resolve this issue.
CVSS Score
5.3
EPSS Score
0.001
Published
2025-12-29
A vulnerability was found in Open5GS up to 2.7.5. Affected by this vulnerability is the function ogs_pfcp_handle_create_pdr in the library lib/pfcp/handler.c of the component PFCP. The manipulation results in improper initialization. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitation appears to be difficult. The exploit has been made public and could be used. The patch is identified as 773117aa5472af26fc9f80e608d3386504c3bdb7. It is best practice to apply a patch to resolve this issue.
CVSS Score
3.7
EPSS Score
0.001
Published
2025-12-19
A vulnerability has been found in Open5GS up to 2.7.6. Affected is the function ogs_pfcp_pdr_find_or_add/ogs_pfcp_far_find_or_add/ogs_pfcp_urr_find_or_add/ogs_pfcp_qer_find_or_add in the library lib/pfcp/context.c of the component QER/FAR/URR/PDR. The manipulation leads to reachable assertion. It is possible to initiate the attack remotely. The attack's complexity is rated as high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is 442369dcd964f03d95429a6a01a57ed21f7779b7. Applying a patch is the recommended action to fix this issue.
CVSS Score
3.7
EPSS Score
0.001
Published
2025-12-19
A flaw has been found in Open5GS up to 2.7.5. This impacts the function ogs_pfcp_handle_create_pdr in the library lib/pfcp/handler.c of the component FAR-ID Handler. Executing manipulation can lead to null pointer dereference. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is said to be difficult. The exploit has been published and may be used. This patch is called 93a9fd98a8baa94289be3b982028201de4534e32. It is advisable to implement a patch to correct this issue.
CVSS Score
3.1
EPSS Score
0.001
Published
2025-12-19
An issue was discovered in Open5GS 2.7.5-49-g465e90f, when processing a PFCP Session Establishment Request (type=50), the UPF crashes with a reachable assertion in `lib/pfcp/context.c` (`ogs_pfcp_object_teid_hash_set`) if the CreatePDR?PDI?F-TEID has CH=1 and the F-TEID address-family flag(s) (IPv4/IPv6) do not match the GTP-U resource family configured for the selected DNN (Network Instance), resulting in a denial of service.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-12-18
In Open5GS 2.7.6, AMF crashes when receiving an abnormal NGSetupRequest message, resulting in denial of service.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-11-10
Reachable Assertion vulnerability in Open5GS up to version 2.7.6 allows attackers with connectivity to the NRF to cause a denial of service. This is achieved by sending the creation of an NF with an invalid type via SBI and then requesting its data. The NRF executes a check that crashes the process, leaving the discovery service unresponsive.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-10-27