What’s Vulnerable › Vulnerabilities

CVE-2026-33903: Ella Core panics when processing a crafted NGAP LocationReport message

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-27 · updated 2026-10-26
• Weakness: CWE-476

Description

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing a specially crafted NGAP LocationReport message. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. Version 1.7.0 adds guards in NGAP Location Report handler.

Affected products

• ellanetworks core: before 1.7.0 — fixed in 1.7.0

How to fix

Upgrade to a fixed version: ellanetworks core 1.7.0. Check the vendor advisory for mitigations.

References

• https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8
• https://github.com/ellanetworks/core/releases/tag/v1.7.0
• https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf

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