CVE-2026-1738 | THREATINT

Description

A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. 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

ZiyuLin (VulDB User) reporter

References

vuldb.com/?id.343637 (VDB-343637 | Open5GS SGWC context.c sgwc_tunnel_add assertion) vdb-entry technical-description

vuldb.com/?ctiid.343637 (VDB-343637 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.741193 (Submit #741193 | Open5gs SGWC v2.7.6 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4261 issue-tracking

github.com/open5gs/open5gs/issues/4261 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-1738)

nvd.nist.gov (CVE-2026-1738)

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