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PatchSiren cyber security CVE debrief

CVE-2026-46889 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Siebel Apps - Marketing, a product of Oracle Siebel CRM. The vulnerability, tracked as CVE-2026-46889, 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. The vulnerability is located in the Marketing component of Siebel Apps - Marketing and is easily exploitable. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating high impacts on confidentiality, integrity, and availability. Organizations using Siebel Apps - Marketing versions 17.0-26.5 should prioritize patching this vulnerability to prevent potential takeovers.

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 includes operators, platform administrators, vulnerability management teams, and security teams who need to ensure the security of their systems.

Technical summary

The vulnerability is located in the Marketing component of Siebel Apps - Marketing. It is easily exploitable and allows unauthenticated attackers with network access via HTTP to compromise the system. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating high impacts on confidentiality, integrity, and availability. The vulnerability affects Siebel Apps - Marketing versions 17.0-26.5. There is no evidence of exploitation in the wild, but defenders should verify system configurations and inventory to ensure they are not exposed.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Oracle Corporation
  • Restrict network access to Siebel Apps - Marketing
  • Monitor for suspicious activity
  • Verify system configurations and inventory
  • Implement compensating controls if patching is not feasible
  • 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 2026-06-17T10:54:06.600Z and last modified on 2026-06-18T22:59:55.710Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability affects Siebel Apps - Marketing versions 17.0-26.5. There is no evidence of exploitation in the wild, but defenders should verify system configurations and inventory to ensure they are not exposed.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46889 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46889

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

  • CVE-2026-46889 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46889

    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.