How severe is CVE-2026-46921?

CVE-2026-46921 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-46921 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46921?

CVE-2026-46921 affects Oracle Siebel Cloud Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46921?

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-2026-46921 have an EU (EUVD) identifier?

Yes. CVE-2026-46921 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37239.

When was CVE-2026-46921 published?

CVE-2026-46921 was published on 2026-06-17 and last updated on 2026-06-18.

CVE-2026-46921

CVE-2026-46921 is a high-severity vulnerability in Oracle Siebel Cloud Manager with a CVSS 3.x base score of 8.8. 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37239
Weakness: CWE-269
Affected product: Oracle Siebel Cloud Manager
Published: 2026-06-17
Last modified: 2026-06-18

Description

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in takeover of Siebel CRM Cloud Applications. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2026-46921?: Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in takeover of Siebel CRM Cloud Applications. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
How severe is CVE-2026-46921?: CVE-2026-46921 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-46921 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46921?: CVE-2026-46921 affects Oracle Siebel Cloud Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46921?: 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-2026-46921 have an EU (EUVD) identifier?: Yes. CVE-2026-46921 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37239.
When was CVE-2026-46921 published?: CVE-2026-46921 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:siebel_cloud_manager:*:*:*:*:*:*:*:*

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CVE-2026-46919 — Critical (CVSS 9.8): Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager).…
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CVE-2026-46925 — High (CVSS 8.3): Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager).…
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