How severe is CVE-2026-46834?

CVE-2026-46834 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-2026-46834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46834?

CVE-2026-46834 affects Oracle Database Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46834?

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-2026-46834 have an EU (EUVD) identifier?

Yes. CVE-2026-46834 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33014.

When was CVE-2026-46834 published?

CVE-2026-46834 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-46834

CVE-2026-46834 is a high-severity vulnerability in Oracle Database Server 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% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33014
Weakness: CWE-400
Affected product: Oracle Database Server
Published: 2026-05-28
Last modified: 2026-06-17

Description

Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Net Service. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Net Service. 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-2026-46834?: Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Net Service. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Net Service. 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-2026-46834?: CVE-2026-46834 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-2026-46834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46834?: CVE-2026-46834 affects Oracle Database Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46834?: 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-2026-46834 have an EU (EUVD) identifier?: Yes. CVE-2026-46834 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33014.
When was CVE-2026-46834 published?: CVE-2026-46834 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cspumay2026.html

Affected products (1)

cpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*

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