CVE-2026-32320 json
Ella Core: AMF DoS via malformed PathSwitchRequest with empty NR security capability bitstrings
published 2026-03-12 7 mo ago modified 2026-06-17 4 mo ago also GHSA-j478-p7vq-3347 , GO-2026-4691 , EUVD-2026-11724
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
Ella Core is a 5G core designed for private networks. Prior to 1.5.1, 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. 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. This vulnerability is fixed in 1.5.1.
Patch / fix
- go github.com/ellanetworks/core 1.5.1
- ellanetworks ella_core 1.5.1
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1
suse advisories SUSE-SU-2026:1042-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/ellanetworks/core | <1.5.1 |
1.5.1 |
Affected products
- ellanetworks core
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/ellanetworks/core/security/advisories/GHSA-j478-p7vq-3347
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-32320
advisory
-
github.com
/ellanetworks/core
package
-
github.com
/ellanetworks/core/releases/tag/v1.5.1
web
-
pkg.go.dev
/vuln/GO-2026-4691
web
Sources
- CVE List CVE-2026-32320
- GitHub Advisory GHSA-j478-p7vq-3347
- NVD CVE-2026-32320
- OSV GO-2026-4691
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