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Open5gs EUVDEUVD-2026-78929

| CVE-2026-91855 MEDIUM
Improper Resource Shutdown or Release (CWE-404)
2026-09-15 VulDB GHSA-jvrm-386x-vcpc
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulDB) · only source for this CVE.

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
Source Code Evidence Fetched
Sep 15, 2026 - 17:37 vuln.today
Analysis Generated
Sep 15, 2026 - 17:37 vuln.today
CVSS changed
Sep 15, 2026 - 17:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
CVE Published
Sep 15, 2026 - 16:45 cve.org
MEDIUM 5.5

DescriptionCVE.org

A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this vulnerability is an unknown functionality of the file lib/pfcp/handler.c of the component PFCP Message Handler. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The patch is named 028e1dbb5e3271035ccee906ef417a97fc523f71. Applying a patch is the recommended action to fix this issue. CVE-2025-29339 describes a different assertion failure vulnerability in Open5GS UPF.

AnalysisAI

Denial of service in Open5GS 2.7.7 and earlier lets a remote attacker crash the SGW-U/UPF process by sending a crafted PFCP Session Establishment or Modification Request containing a malformed Outer Header Creation IE. The handler fails to validate the Outer Header Creation description bits and payload length, so a failed GTP-U peer connection leaves a node with an unset address family in the peer list; a subsequent request referencing the same address reaches ogs_pfcp_far_f_teid_hash_set and aborts the process. …

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CVE-2025-15684 MEDIUM POC
5.5 Aug 12

Reachable assertion in Open5GS up to version 2.7.6 allows remote unauthenticated attackers to crash the Diameter CER han

CVE-2025-15687 LOW POC
2.1 Aug 12

Denial of service in Open5GS 2.7.6 and earlier allows network-adjacent attackers with low-privilege Diameter Gx peer acc

CVE-2025-15686 LOW POC
2.1 Aug 12

Denial of service in Open5GS HSS (Home Subscriber Server) versions 2.7.0 through 2.7.6 is triggered remotely by manipula

CVE-2024-40130 CRITICAL POC
9.8 Jul 16

open5gs v2.6.4 is vulnerable to Buffer Overflow. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl

CVE-2024-40129 CRITICAL POC
9.8 Jul 16

Open5GS v2.6.4 is vulnerable to Buffer Overflow. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl

CVE-2021-28122 CRITICAL POC
9.8 Mar 10

A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1. Rated critical severity (CVSS 9.8

CVE-2025-15685 MEDIUM
5.3 Aug 12

Memory corruption in Open5GS versions through 2.7.1 is remotely exploitable via the freeDiameter protocol component, all

CVE-2021-25863 HIGH POC
8.8 Jan 26

Open5GS 2.1.3 listens on 0.0.0.0:3000 and has a default password of 1423 for the admin account. Rated high severity (CVS

CVE-2023-37023 HIGH POC
8.6 Jan 22

Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. Rated high sev

CVE-2023-37021 HIGH POC
8.6 Jan 22

Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the

CVE-2023-37020 HIGH POC
8.6 Jan 22

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the

CVE-2023-37019 HIGH POC
8.6 Jan 22

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the

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EUVD-2026-78929 vulnerability details – vuln.today

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