CVE-2026-7601 Details
Description
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.
A denial-of-service vulnerability has been identified in Open5GS versions through 2.7.6, specifically within the AMF component. The issue arises in the 'gmm-handler.c' file, where an unknown function improperly handles the 'reg_type' argument. This mismanagement can lead to a crash when the AMF receives a Registration Request with an invalid GUTI, allowing the denial-of-service attack to be executed remotely.
Users can upgrade to Open5GS version 2.7.7 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 2, 2026CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open5gs/open5gs/ | [email protected] | Vendor |
| https://github.com/open5gs/open5gs/commit/ebc66942b6f8f1fab2d640e71cf4e9f1a423b426 | [email protected] | Source CodeVendor |
| https://github.com/open5gs/open5gs/issues/4321 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/open5gs/open5gs/releases/tag/v2.7.7 | [email protected] | Release NotesVendor |
| https://vuldb.com/submit/805675 | [email protected] | Permission Required |
| https://vuldb.com/vuln/360558 | [email protected] | AdvisoryPermission RequiredRemedy |
| https://vuldb.com/vuln/360558/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Open5GS | <= 2.7.6 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 2, 2026 | New CVE Received | [email protected] |