CVE-2026-7601

MEDIUM 4.3

Open5GS AMF gmm-handler.c denial of service

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability has been found in Open5GS up to 2.7.6. Affected is an unknown function of the file src/amf/gmm-handler.c of the component AMF. The manipulation of the argument reg_type leads to denial of service. The attack is possible to be carried out remotely. Upgrading to version 2.7.7 is able to address this issue. The identifier of the patch is ebc66942b6f8f1fab2d640e71cf4e9f1a423b426. It is advisable to upgrade the affected component.

CWE	CWE-404
Vendor	n/a
Product	open5gs
Published	May 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Open5GS

2.7.0 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360558 vuldb.com: https://vuldb.com/vuln/360558/cti vuldb.com: https://vuldb.com/submit/805675 github.com: https://github.com/open5gs/open5gs/issues/4321 github.com: https://github.com/open5gs/open5gs/commit/ebc66942b6f8f1fab2d640e71cf4e9f1a423b426 github.com: https://github.com/open5gs/open5gs/releases/tag/v2.7.7 github.com: https://github.com/open5gs/open5gs/

Credits

🔍 jungnickel (VulDB User)