CVE-2026-7536 Details
Description
A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsf_sess_add_by_ip_address of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
A denial-of-service vulnerability has been identified in Open5GS versions prior to 2.7.7. The issue arises in the BSF component, specifically within the 'bsf_sess_add_by_ip_address' function of the '/nbsf-management/v1/pcfBindings' endpoint. When an invalid IPv4 address is provided, the function fails to process the request correctly, leading to a crash. This vulnerability can be exploited remotely, causing the BSF process to terminate unexpectedly.
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 1, 2026CISA-ADP
Assessed May 1, 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/issues/4400 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/submit/804292 | [email protected] | Permission Required |
| https://vuldb.com/vuln/360353 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/360353/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 | <= 2.7.7 (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 1, 2026 | New CVE Received | [email protected] |