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Open5gs EUVD-2026-12433

| CVE-2026-4240 MEDIUM
Improper Resource Shutdown or Release (CWE-404)
2026-03-16 cna@vuldb.com
5.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

3
EUVD ID Assigned
Mar 16, 2026 - 14:30 euvd
EUVD-2026-12433
Analysis Generated
Mar 16, 2026 - 14:30 vuln.today
CVE Published
Mar 16, 2026 - 14:20 nvd
MEDIUM 5.3

DescriptionCVE.org

A vulnerability was determined in Open5GS up to 2.7.6. The affected element is the function smf_gx_cca_cb/smf_gy_cca_cb/smf_s6b_aaa_cb/smf_s6b_sta_cb of the component CCA Handler. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.7.7 is sufficient to fix this issue. Patch name: 80eb484a6ab32968e755e628b70d1a9c64f012ec. Upgrading the affected component is recommended.

AnalysisAI

Denial of service in Open5GS through version 2.7.6 affects the CCA Handler component's callback functions, allowing unauthenticated remote attackers to crash the service. Public exploit code is available for this vulnerability. …

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Vulnerability AssessmentAI

Risk Assessment Service disruption affecting availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker sends specially crafted requests that cause excessive resource consumption (CPU, memory, disk) or trigger a crash in the target application.
Remediation Implement rate limiting and input validation. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems running Open5GS and apply vendor patches as part of regular patch cycle. …

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EUVD-2026-12433 vulnerability details – vuln.today

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