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Description

A vulnerability was identified in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_modify_bearer_response/sgwc_sxa_handle_session_modification_response of the component PGW S5U Address Handler. The manipulation leads to null pointer dereference. The attack can be initiated remotely. The exploit is publicly available and might be used. The identifier of the patch is f1bbd7b57f831e2a070780a7d8d5d4c73babdb59. Applying a patch is the recommended action to fix this issue.

PUBLISHED Reserved 2026-02-06 | Published 2026-02-06 | Updated 2026-02-23 | 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

NULL Pointer Dereference

Denial of Service

Timeline

2026-02-06:Advisory disclosed
2026-02-06:VulDB entry created
2026-02-12:VulDB entry last update

Credits

FrankyLin (VulDB User) reporter

References

vuldb.com/?id.344622 (VDB-344622 | Open5GS PGW S5U Address sgwc_sxa_handle_session_modification_response null pointer dereference) vdb-entry technical-description

vuldb.com/?ctiid.344622 (VDB-344622 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.744719 (Submit #744719 | Open5GS SGWC v2.7.6 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4257 issue-tracking

github.com/open5gs/open5gs/issues/4257 exploit issue-tracking

github.com/...ommit/f1bbd7b57f831e2a070780a7d8d5d4c73babdb59 patch

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-2062)

nvd.nist.gov (CVE-2026-2062)

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