CVE-2026-1522

A weakness has been identified in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.

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/b19cf6a	Patch
https://github.com/open5gs/open5gs/issues/4266	Exploit Issue Tracking Patch Vendor Advisory
https://github.com/open5gs/open5gs/issues/4266#event-21968568116	Issue Tracking Patch Exploit
https://github.com/open5gs/open5gs/issues/4266#issue-3794991595	Exploit Issue Tracking Patch Vendor Advisory
https://vuldb.com/?ctiid.343193	Permissions Required VDB Entry
https://vuldb.com/?id.343193	Third Party Advisory VDB Entry
https://vuldb.com/?submit.738371	Third Party Advisory VDB Entry Exploit

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-01-28 17:16

Updated : 2026-02-02 19:23

NVD link : CVE-2026-1522

Mitre link : CVE-2026-1522

CVE.ORG link : CVE-2026-1522

JSON object : View

Products Affected

open5gs

open5gs

CWE

CWE-404

Improper Resource Shutdown or Release

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