High severity · published Jan 29, 2026
CVE-2026-1586
Open5GS SGWC s11-handler.c ogs_gtp2_f_teid_to_ip denial of service
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS · Open5gs
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1586
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1586
github.com
https://github.com/open5gs/open5gs/
Exploit
https://github.com/open5gs/open5gs/issues/4273
Exploit
https://github.com/open5gs/open5gs/issues/4273#event-21968643659
Exploit
https://github.com/open5gs/open5gs/issues/4273#issue-3796030721
Permissions Required
https://vuldb.com/?ctiid.343349
Third Party Advisory
https://vuldb.com/?id.343349
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