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.
References (7)
Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.344622
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.344622
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.744719
Exploit, Issue Tracking, Vendor Advisory issue-tracking
https://github.com/open5gs/open5gs/issues/4257
Exploit, Issue Tracking, Vendor Advisory exploit
issue-tracking
https://github.com/open5gs/open5gs/issues/4257#issue-3787701521
Product product
https://github.com/open5gs/open5gs/
Scores
CVSS v3
5.3
EPSS
0.0065
EPSS Percentile
46.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-404
CWE-476
Status
published
Products (1)
open5gs/open5gs
< 2.7.0
Published
Feb 06, 2026
Tracked Since
Feb 18, 2026