CVE-2026-1521
Last modified
CVE-2026-1521 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. EPSS estimates a 0.51% chance of exploitation in the next 30 days.
Description
A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 69b53add90a9479d7960b822fc60601d659c328b. It is recommended to apply a patch to fix this issue.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Open5gs | Open5gs | <= 2.7.6 |
References
- https://github.com/open5gs/open5gs/issues/4268Exploit, Issue Tracking, Vendor Advisory
- https://github.com/open5gs/open5gs/issues/4268#event-21989483261Exploit, Issue Tracking, Vendor Advisory
- https://github.com/open5gs/open5gs/issues/4268#issue-3795012861Exploit, Issue Tracking, Vendor Advisory
- https://vuldb.com/?ctiid.343192Permissions Required, VDB Entry
- https://vuldb.com/?id.343192Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.738370Exploit, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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