PT-2026-26469 · Ella Core · Ella Core

P1-Aji · CVE-2026-33283 · Published 2026-03-19 · Updated 2026-07-30

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Ella Core versions prior to 1.6.0

Description Ella Core, a 5G core designed for private networks, experiences a panic when processing improperly formatted UL NAS Transport NAS messages that lack a Request Type. An attacker can exploit this by sending specially crafted NAS messages to Ella Core, leading to a process crash and service disruption for all connected subscribers. This does not require authentication. The issue occurs when receiving an UL NAS Message without a Request Type and no SM Context.

Recommendations Update to version 1.6.0 or later.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-33283

GHSA-3366-GW57-FCM5

GO-2026-4776

OPENSUSE-SU-2026:21483-1

SUSE-SU-2026:1135-1

Affected Products

Ella Core

References · 1745

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33283.json · Exploit
• https://github.com/ellanetworks/core/security/advisories/GHSA-3366-gw57-fcm5 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4776 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1135-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3366-gw57-fcm5 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33283 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:21483-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33283 · Vendor Advisory
• https://github.com/ellanetworks/core · Note
• https://suse.com/security/cve/CVE-2025-65797 · Note
• https://suse.com/security/cve/CVE-2026-44427 · Note
• https://suse.com/security/cve/CVE-2026-27589 · Note
• https://suse.com/security/cve/CVE-2026-7736 · Note
• https://suse.com/security/cve/CVE-2026-27137 · Note
• https://suse.com/security/cve/CVE-2026-25232 · Note