CVE-2026-2062
Open5GS PGW S5U Address sgwc_sxa_handle_session_modification_response null pointer dereference
- State
- Published
- Severity
- 6.9 Medium
- Published
- Feb 6, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Open5GSn/a |
|
References
- VDB-344622 | Open5GS PGW S5U Address sgwc_sxa_handle_session_modification_response null pointer dereferencevdb-entrytechnical-description
- VDB-344622 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #744719 | Open5GS SGWC v2.7.6 Denial of Servicethird-party-advisory
- https://github.com/open5gs/open5gs/issues/4257issue-tracking
- https://github.com/open5gs/open5gs/issues/4257#issue-3787701521exploitissue-tracking
- https://github.com/open5gs/open5gs/commit/f1bbd7b57f831e2a070780a7d8d5d4c73babdb59patch
- https://github.com/open5gs/open5gs/product
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