CVE-2026-33904

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 58/100
Published: 2026-03-27 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, a deadlock in the AMF's SCTP notification handler causes the entire AMF control plane to hang until the process is restarted. An attacker with access to the N2 interface can cause Ella Core to hang, resulting in a denial of service for all subscribers. Version 1.7.0 adds deferred Radio cleanup in serveConn SCTP server so that every connection exit path removes the radio. Remove the stale-entry scan from SCTP Notification handling.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
ellanetworks ella_core < 1.7.0

Bug Bounty Relevance

58 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.17%
Raw Score 0.001730
Percentile 6.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00173
2026-10-28
0.00173

Intelligence Sources

nvd ref →