CVE-2026-32319
Published: 13 March 2026
Summary
CVE-2026-32319 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Ellanetworks Ella Core. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-32319 is a vulnerability in Ella Core, a 5G core implementation designed for private networks, affecting versions prior to 1.5.1. The issue causes the software to panic when processing a malformed integrity-protected NGAP/NAS message with a length under 7 bytes. Classified under CWE-125, it carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating high-impact availability disruption with no confidentiality or integrity effects.
An unauthenticated attacker with network access can exploit this by sending crafted NAS messages to Ella Core, triggering the panic and crashing the process. This leads to service disruption for all connected subscribers, as no authentication is required for the attack.
The vulnerability is addressed in Ella Core version 1.5.1. Additional details are available in the security advisory at https://github.com/ellanetworks/core/security/advisories/GHSA-m9pm-w3gv-c68f.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-11722
Vulnerability details
Ella Core is a 5G core designed for private networks. Prior to 1.5.1, Ella Core panics when processing a malformed integrity protected NGAP/NAS message with a length under 7 bytes. An attacker able to send crafted NAS messages to Ella…
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Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. This vulnerability is fixed in 1.5.1.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability enables unauthenticated remote exploitation of a network-exposed 5G core service (T1190) via crafted NAS messages that trigger application crash (T1499.004).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Validates incoming NGAP/NAS messages to reject malformed integrity-protected packets with length under 7 bytes, directly preventing the processing error that triggers the panic.
Ensures graceful error handling during malformed message parsing to avoid process crashes and maintain service availability.
Implements denial-of-service protections against unauthenticated crafted NAS messages that cause high-impact availability disruption by crashing the Ella Core process.