HomeOpen5gsCVE-2026-4240

CVE-2026-4240

MEDIUM
5.5CVSS
Published: 2026-03-16
Updated: 2026-03-20
AI Analysis

Description

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.

CVSS Metrics

Vector
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
Attack Vector
network
Complexity
low
Privileges
none
User Action
none
Confidentiality
undefined
Integrity
undefined
Availability
undefined
Weaknesses
CWE-404

Metadata

Primary Vendor
OPEN5GS
Published
3/16/2026
Last Modified
3/20/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

open5gs : open5gs

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CVE-CVE-2026-4240 | MEDIUM Severity | CVEDatabase.com | CVEDatabase.com