Description
A security vulnerability has been detected in Open5GS up to 2.7.7. The affected element is the function yuarel_parse in the library /lib/sbi/conv.c of the component NRF. Such manipulation of the argument hnrf-uri leads to denial of service. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
References (5)
Core 5
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-362589 | Open5GS NRF conv.c yuarel_parse denial of service
https://vuldb.com/vuln/362589
Signature, Permissions Required signature
permissions-required
VDB-362589 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/362589/cti
Third Party Advisory third-party-advisory
Submit #808509 | Open5gs NRF v2.7.7 Denial of Service
https://vuldb.com/submit/808509
Exploit exploit
issue-tracking
https://github.com/open5gs/open5gs/issues/4457
Product product
https://github.com/open5gs/open5gs/
Scores
CVSS v3
4.3
EPSS
0.0037
EPSS Percentile
28.8%
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