Description
A vulnerability was determined in Open5GS up to 2.7.7. This affects the function gsm_handle_pdu_session_modification_qos_flow_descriptions of the file src/smf/gsm-handler.c of the component SMF. Executing a manipulation of the argument n1SmMsg can lead to denial of service. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
References (6)
Core 6
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-362585 | Open5GS SMF gsm-handler.c denial of service
https://vuldb.com/vuln/362585
Signature, Permissions Required signature
permissions-required
VDB-362585 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/362585/cti
Third Party Advisory third-party-advisory
Submit #808489 | Open5gs SMF v2.7.7 Denial of Service
https://vuldb.com/submit/808489
Exploit exploit
issue-tracking
https://github.com/open5gs/open5gs/issues/4452
Patch issue-tracking
patch
https://github.com/open5gs/open5gs/pull/4513
Product product
https://github.com/open5gs/open5gs/
Scores
CVSS v3
4.3
EPSS
0.0038
EPSS Percentile
29.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-404
Status
published
Products (9)
None/Open5GS
2.7.0
None/Open5GS
2.7.1
None/Open5GS
2.7.2
None/Open5GS
2.7.3
None/Open5GS
2.7.4
None/Open5GS
2.7.5
None/Open5GS
2.7.6
None/Open5GS
2.7.7
open5gs/open5gs
< 2.7.7
Published
May 11, 2026
Tracked Since
May 11, 2026