PT-2026-49971 · Oracle+2 · Mysql Server+3

4Ra1N + 2 · CVE-2026-46863 · Published 2026-06-16 · Updated 2026-06-24

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions MySQL Server versions 8.4.0 through 8.4.9 MySQL Server versions 9.0.0 through 9.7.0 MySQL Cluster versions 8.0.11 through 8.0.46 MySQL Cluster versions 8.4.0 through 8.4.9 MySQL Cluster versions 9.0.0 through 9.7.0

Description An issue exists in the Server: Connection Handling component. An unauthenticated attacker with network access via multiple protocols can exploit this to cause a hang or a frequently repeatable crash, resulting in a complete Denial of Service (DOS), which is a condition where the service becomes unavailable to legitimate users.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-46863

USN-8457-1

USN-8457-2

Affected Products

Linuxmint

Mysql Cluster

Mysql Server

Ubuntu

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46863.json · Exploit
• https://ubuntu.com/security/CVE-2026-46862 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46863 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8457-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-46863 · Security Note
• https://ubuntu.com/security/notices/USN-8457-2 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8457-2 · Vendor Advisory
• https://oracle.com/security-alerts/cspujun2026.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46863 · Security Note
• https://osv.dev/vulnerability/CVE-2026-46863 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8457-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46863 · Vendor Advisory
• https://t.me/cveNotify/170817 · Telegram Post