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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Open5gs
  • Open5gs

Configuration 1 [-]

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/open5gs/open5gs/issues/4273 cve-icon cve-icon
https://github.com/open5gs/open5gs/issues/4273#event-21968643659 cve-icon cve-icon
https://github.com/open5gs/open5gs/issues/4273#issue-3796030721 cve-icon cve-icon
https://vuldb.com/?ctiid.343349 cve-icon cve-icon
https://vuldb.com/?id.343349 cve-icon cve-icon
https://vuldb.com/?submit.738375 cve-icon cve-icon
History

Mon, 02 Feb 2026 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

Fri, 30 Jan 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Open5gs
Open5gs open5gs
Vendors & Products Open5gs
Open5gs open5gs

Thu, 29 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 29 Jan 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title Open5GS SGWC s11-handler.c ogs_gtp2_f_teid_to_ip denial of service
Weaknesses CWE-404
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-01-29T15:11:30.103Z

Reserved: 2026-01-29T05:57:08.622Z

Link: CVE-2026-1586

cve-icon Vulnrichment

Updated: 2026-01-29T15:11:25.270Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-29T13:15:53.113

Modified: 2026-02-02T18:43:23.160

Link: CVE-2026-1586

cve-icon Redhat

No data.