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PatchSiren cyber security CVE debrief

CVE-2026-46884 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Siebel Apps - Marketing, a product of Oracle Siebel CRM. The vulnerability, tracked as CVE-2026-46884, has a CVSS score of 9.8 and allows unauthenticated attackers with network access via HTTP to compromise the system. Successful attacks can result in a takeover of Siebel Apps - Marketing. This vulnerability is easily exploitable and has a high impact on confidentiality, integrity, and availability. Organizations should be aware of the potential risks and take necessary actions to mitigate them.

Vendor
Oracle Corporation
Product
Siebel Apps - Marketing
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-18
Advisory published
2026-06-17
Advisory updated
2026-06-18

Who should care

Organizations using Siebel Apps - Marketing versions 17.0-26.5 should prioritize patching this vulnerability to prevent potential takeovers. This is a critical vulnerability with a high CVSS score, and organizations should take immediate action to mitigate the risks. Security teams and vulnerability management teams should review the affected scope and severity, and plan vendor-supported updates or mitigations through normal change control.

Technical summary

The vulnerability is located in the Marketing component of Siebel Apps - Marketing. It has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating a high impact on confidentiality, integrity, and availability. The vulnerability is easily exploitable and requires no authentication or user interaction. It affects Siebel Apps - Marketing versions 17.0-26.5, and successful attacks can result in a takeover of Siebel Apps - Marketing.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Oracle Corporation as soon as possible
  • Restrict network access to Siebel Apps - Marketing to only necessary personnel
  • Monitor for suspicious activity and implement additional security measures to detect potential attacks
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check 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
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-06-17T10:54:06.073Z and last modified on 2026-06-18T22:59:05.850Z. The NVD entry is currently Analyzed. Oracle Corporation has provided a vendor advisory for this vulnerability. The vulnerability affects Siebel Apps - Marketing versions 17.0-26.5, and successful attacks can result in a takeover of Siebel Apps - Marketing. The CVSS score is 9.8, indicating a critical vulnerability. The CVE record was obtained from the NVD, and its accuracy has been verified through defensive validation tasks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46884 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46884

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

  • CVE-2026-46884 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46884

    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.