CVE-2026-4240
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.
- Affected products
- Open5Gs
- open5gs
- < 2.7.7
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.5% (42th percentile)
- Weakness
- CWE-404
- NVD status
- Analyzed
- Published
- 2026-03-16
CVE-2026-4240 at NVD
No indexed exploits for CVE-2026-4240 yet
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No exploit for CVE-2026-4240 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.