CVE-2026-1521

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 69b53add90a9479d7960b822fc60601d659c328b. It is recommended to apply a patch to fix this issue.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/open5gs/open5gs/commit/69b53add90a9479d7960b822fc60601d659c328b	Patch
https://github.com/open5gs/open5gs/issues/4268	Exploit Issue Tracking Vendor Advisory
https://github.com/open5gs/open5gs/issues/4268#event-21989483261	Issue Tracking Exploit Vendor Advisory
https://github.com/open5gs/open5gs/issues/4268#issue-3795012861	Exploit Issue Tracking Vendor Advisory
https://vuldb.com/?ctiid.343192	Permissions Required VDB Entry
https://vuldb.com/?id.343192	Third Party Advisory VDB Entry
https://vuldb.com/?submit.738370	Third Party Advisory VDB Entry Exploit

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-01-28 15:16

Updated : 2026-02-02 19:44

NVD link : CVE-2026-1521

Mitre link : CVE-2026-1521

CVE.ORG link : CVE-2026-1521

JSON object : View

Products Affected

open5gs

open5gs

CWE

CWE-404

Improper Resource Shutdown or Release

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