CVE-2026-22017

MEDIUM

MySQL Server 8.0.0-8.0.45, 8.4.0-8.4.8, 9.0.0-9.6.0 - Denial of Service in Optimizer

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-22017. PoCs published by George0Papasotiriou.

AI-analyzed exploit summary This repository provides a Python-based simulated BLE peripheral that demonstrates CVE-2026-22017, a missing authentication vulnerability in BLE firmware update mechanisms. The PoC exposes a writable GATT characteristic allowing unauthenticated firmware updates, enabling device takeover via malicious firmware images.

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Exploits (1)

github WORKING POC
by George0Papasotiriou · pythonpoc
https://github.com/George0Papasotiriou/CVE-2026-22017-Firmware-Update-via-BLE-Without-Authentication

This repository provides a Python-based simulated BLE peripheral that demonstrates CVE-2026-22017, a missing authentication vulnerability in BLE firmware update mechanisms. The PoC exposes a writable GATT characteristic allowing unauthenticated firmware updates, enabling device takeover via malicious firmware images.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: BLE-enabled devices with unauthenticated firmware update mechanisms (unspecified vendor/version)
No auth needed
Prerequisites: Proximity to the target BLE device · Knowledge of the target device's GATT characteristic UUID for firmware updates · Ability to craft a malicious firmware image compatible with the target device
mistral-large-3 · analyzed Aug 04, 2026 Full analysis →

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
Oracle Advisory
https://www.oracle.com/security-alerts/cpuapr2026.html

Scores

CVSS v3 6.5
EPSS 0.0030
EPSS Percentile 22.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (4)
oracle/mysql_server 8.0.0 - 8.0.45
Oracle Corporation/MySQL Server 8.0.0 - 8.0.45
Oracle Corporation/MySQL Server 8.4.0 - 8.4.8
Oracle Corporation/MySQL Server 9.0.0 - 9.6.0
Published Apr 21, 2026
Tracked Since Apr 22, 2026