How severe is CVE-2026-46862?

CVE-2026-46862 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-46862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46862?

CVE-2026-46862 affects Oracle Mysql Router. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46862?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-46862 have an EU (EUVD) identifier?

Yes. CVE-2026-46862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37355.

When was CVE-2026-46862 published?

CVE-2026-46862 was published on 2026-06-17 and last updated on 2026-06-18.

CVE-2026-46862

CVE-2026-46862 is a high-severity vulnerability in Oracle Mysql Router with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37355
Weakness: CWE-400
Affected product: Oracle Mysql Router
Published: 2026-06-17
Last modified: 2026-06-18

Description

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Frequently asked questions

What is CVE-2026-46862?: Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
How severe is CVE-2026-46862?: CVE-2026-46862 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-46862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46862?: CVE-2026-46862 affects Oracle Mysql Router. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-46862 have an EU (EUVD) identifier?: Yes. CVE-2026-46862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37355.
When was CVE-2026-46862 published?: CVE-2026-46862 was published on 2026-06-17 and last updated on 2026-06-18.

References

https://www.oracle.com/security-alerts/cspujun2026.html

Affected products (1)

cpe:2.3:a:oracle:mysql_router:*:*:*:*:*:*:*:*

More vulnerabilities in Oracle Mysql Router

CVE-2026-46860 — Critical (CVSS 9.8): Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are…

All CVEs affecting Oracle Mysql Router →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →