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PatchSiren cyber security CVE debrief

CVE-2026-46921 Oracle Corporation CVE debrief

A vulnerability was discovered in Siebel CRM Cloud Applications, specifically in the Siebel Cloud Manager component. The vulnerability is easily exploitable, allowing a low-privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks can result in a takeover of Siebel CRM Cloud Applications. The vulnerability has a high CVSS score of 8.8, indicating high confidentiality, integrity, and availability impacts. Organizations should prioritize patching this vulnerability to prevent potential takeovers.

Vendor
Oracle Corporation
Product
Siebel CRM Cloud Applications
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-08-03
Advisory published
2026-06-17
Advisory updated
2026-08-03

Who should care

Organizations using Siebel CRM Cloud Applications versions 17.0-26.5 should prioritize patching this vulnerability to prevent potential takeovers. The vulnerability has a high CVSS score of 8.8, indicating high confidentiality, integrity, and availability impacts. Security teams and operators should review the affected scope and apply patches accordingly.

Technical summary

The vulnerability in Siebel CRM Cloud Applications has a CVSS 3.1 Base Score of 8.8, indicating high confidentiality, integrity, and availability impacts. The CVSS Vector is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The vulnerability affects Siebel CRM Cloud Applications versions 17.0-26.5. The Siebel Cloud Manager component is impacted. The vulnerability is easily exploitable, allowing a low-privileged attacker with network access via HTTP to compromise Siebel CRM Cloud Applications.

Defensive priority

High priority should be given to patching this vulnerability due to its high CVSS score and potential for exploitation.

Recommended defensive actions

  • Apply the patch from Oracle Corporation as soon as possible
  • Conduct a thorough inventory of Siebel CRM Cloud Applications instances to ensure all affected versions are identified and patched
  • Implement compensating controls such as network segmentation and access controls to limit the attack surface
  • Monitor for any suspicious activity related to Siebel CRM Cloud Applications
  • Verify the effectiveness of the patch through testing and validation
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-06-17T10:54:09.863Z and was last modified on 2026-06-18T22:24:34.997Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability affects Siebel CRM Cloud Applications versions 17.0-26.5. The Siebel Cloud Manager component is impacted. Defenders should verify the affected versions and apply patches accordingly.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46921 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46921

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46921 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46921

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.