A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function ogs_gtp2_parse_bearer_qos in the library lib/gtp/v2/types.c of the component Bearer QoS IE Length Handler. Performing manipulation results in denial of service. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is named 4e913d21f2c032b187815f063dbab5ebe65fe83a. To fix this issue, it is recommended to deploy a patch.
https://vuldb.com/?submit.728043
https://vuldb.com/?ctiid.339340
https://github.com/open5gs/open5gs/issues/4217#issuecomment-3690767105
https://github.com/open5gs/open5gs/issues/4217#issue-3759615968
https://github.com/open5gs/open5gs/issues/4217
https://github.com/open5gs/open5gs/commit/4e913d21f2c032b187815f063dbab5ebe65fe83a
Published: 2026-01-02
Updated: 2026-01-02
Base Score: 1.7
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P
Severity: Low
Base Score: 3.3
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Severity: Low
Base Score: 4.8
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Severity: Medium