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CVE-2026-4240

MEDIUM

5.3

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/16/2026

Derniere modification3/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

open5gs:open5gs

Faiblesses (CWE)

CWE-404

References

https://github.com/open5gs/open5gs/(cna@vuldb.com)

https://github.com/open5gs/open5gs/commit/80eb484a6ab32968e755e628b70d1a9c64f012ec(cna@vuldb.com)

https://github.com/open5gs/open5gs/issues/4343(cna@vuldb.com)

https://github.com/open5gs/open5gs/issues/4343#issue-4021871895(cna@vuldb.com)

https://github.com/open5gs/open5gs/releases/tag/v2.7.7(cna@vuldb.com)

https://vuldb.com/?ctiid.351182(cna@vuldb.com)

https://vuldb.com/?id.351182(cna@vuldb.com)

https://vuldb.com/?submit.771361(cna@vuldb.com)

Correlations IOC

Aucune correlation enregistree

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