What is the CVSS score of CVE-2026-1522?

CVE-2026-1522 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.0%.

Which versions of Open5gs are affected by CVE-2026-1522?

Organizations using Open5GS should be aware of moderate risk from CVE-2026-1522 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2026-1522?

Yes, a public proof-of-concept exploit is available for CVE-2026-1522. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-1522?

Within 30 days: Identify affected systems running Open5GS and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Open5gs CVE-2026-1522

MEDIUM

Improper Resource Shutdown or Release (CWE-404)

2026-01-28 cna@vuldb.com

Denial Of Service Open5gs

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 23, 2026 - 09:16 vuln.today

Public exploit code

Patch released

Feb 23, 2026 - 09:16 nvd

Patch available

CVE Published

Jan 28, 2026 - 17:16 nvd

MEDIUM 5.3

DescriptionCVE.org

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.

AnalysisAI

Remote denial of service in Open5GS up to version 2.7.6 affects the SGWC component's bearer response handler, allowing unauthenticated attackers to crash the service over the network. Public exploit code exists for this vulnerability, though a patch (commit b19cf6a) is available to resolve it.

Technical ContextAI

Classified as CWE-404 (Improper Resource Shutdown or Release). Affects Open5Gs. 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.