What is the CVSS score of CVE-2026-2522?

CVE-2026-2522 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: 0.1%.

Which versions of Open5gs are affected by CVE-2026-2522?

Organizations using Open5GS should be aware of moderate risk from CVE-2026-2522, a buffer overflow vulnerability rated CVSS 5.3. Exploitation could cause memory corruption or application crashes.

Is there a public PoC exploit available for CVE-2026-2522?

Yes, a public proof-of-concept exploit is available for CVE-2026-2522. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2522?

Within 30 days: Identify affected systems running Open5GS and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Open5gs CVE-2026-2522

MEDIUM

Buffer Overflow (CWE-119)

2026-02-16 cna@vuldb.com

Memory Corruption 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 18, 2026 - 19:42 vuln.today

Public exploit code

CVE Published

Feb 16, 2026 - 00:16 nvd

MEDIUM 5.3

DescriptionCVE.org

A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is an unknown function of the file /src/mme/esm-build.c of the component MME. The manipulation leads to memory corruption. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

Memory corruption in Open5GS up to version 2.7.6 allows remote attackers to cause denial of service through manipulation of the MME component's esm-build.c file. Public exploit code exists for this vulnerability, and the Open5GS project has not yet released a patch despite early notification.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Open5Gs. A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is an unknown function of the file /src/mme/esm-build.c of the component MME. The manipulation leads to memory corruption. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.