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Description

A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. Performing a manipulation results in reachable assertion. Remote exploitation of the attack is possible. The exploit is now public and may be used. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.

PUBLISHED Reserved 2026-02-01 | Published 2026-02-02 | Updated 2026-02-02 | Assigner VulDB




MEDIUM: 6.9CVSS: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
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Reachable Assertion

Timeline

2026-02-01:Advisory disclosed
2026-02-01:VulDB entry created
2026-02-01:VulDB entry last update

Credits

LinZiyu (VulDB User) reporter

References

vuldb.com/?id.343636 (VDB-343636 | Open5GS CreateBearerRequest s5c-handler.c sgwc_s5c_handle_create_bearer_request assertion) vdb-entry technical-description

vuldb.com/?ctiid.343636 (VDB-343636 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.741192 (Submit #741192 | Open5GS SGWC v2.7.6 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4271 issue-tracking

github.com/open5gs/open5gs/issues/4271 issue-tracking

github.com/open5gs/open5gs/issues/4271 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-1737)

nvd.nist.gov (CVE-2026-1737)

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