CVE-2026-32320
MEDIUM6.5EPSS 0.06%Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings
Published: 3/12/2026Modified: 3/23/2026
Description
## Summary Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service. ## Impact An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. ## Fix Added length validation on NR algorithm bitstrings before accessing them in the PathSwitchRequest handler.
Affected packages (2)
- Go/github.com/ellanetworks/corefrom 0, < 1.5.1
- Go/github.com/ellanetworks/corefrom 0, < 1.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |