---
title: "CVE-2026-106808: OpenAirInterface Core Network - Buffer Overflow"
description: "OpenAirInterface Core Network v2.2.1 contains a stack-based buffer overflow caused by improper validation of resynchronizationInfo.rand and auts in Nudm_UEAU Generate Authentication Data endpoint, letting unauthenticated attackers with SBI interface access and valid SUPI terminate the UDM process."
url: https://panop.io/threat-heartbeat/CVE-2026-106808/
---

# CVE-2026-106808 OpenAirInterface Core Network - Buffer Overflow

OpenAirInterface Core Network v2.2.1 contains a stack-based buffer overflow caused by improper validation of resynchronizationInfo.rand and auts in Nudm\_UEAU Generate Authentication Data endpoint, letting unauthenticated attackers with SBI interface access and valid SUPI terminate the UDM process.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-106808)

## Details

Type

Buffer Overflow

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

2 November 2026

Updated

3 November 2026

Weakness

[CWE-121](https://cwe.mitre.org/data/definitions/121.html)

## Vendor fix

Update to the latest version of OpenAirInterface Core Network.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-106808](https://nvd.nist.gov/vuln/detail/CVE-2026-106808)
- [https://github.com/openairinterface/oai-cn5g-udm/issues/4](https://github.com/openairinterface/oai-cn5g-udm/issues/4)
- [https://gist.github.com/hackeryounow/66b7612729af8e205089097e68a42116](https://gist.github.com/hackeryounow/66b7612729af8e205089097e68a42116)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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