Vulnerability · Published Mar 27, 2026 · Assigned by GitHub_M

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

Medium 6.5

In plain English

A medium-severity null pointer dereference in core from ellanetworks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 87.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/ellanetworks/core	1.7.0	GHSA-f2f3-9cx3-wcmf
Go	github.com/ellanetworks/core	1.7.0	GO-2026-4875

Affected products (as reported)

Vendor	Product	Versions
ellanetworks	core	< 1.7.0

Weakness: CWE-476 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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