Is CVE-2026-101393 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-101393 being exploited in the wild.

How severe is CVE-2026-101393?

Medium severity, with a CVSS score of 4.3, published 20 October 2026.

Is there a fix for CVE-2026-101393?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-101393 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-101393?

Check whether you run Oracle Siebel CRM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-101393: Oracle Siebel CRM Marketing authorization bypass

CVE-2026-101393 · Severity: medium · CVSS 4.3 · Published 2026-10-20

Oracle Siebel CRM's Marketing component is vulnerable to an authorization bypass that allows unauthenticated attackers to modify sensitive business data via HTTP. Exploitation requires tricking a user into clicking a malicious link, but once triggered, attackers can alter, insert, or delete customer and marketing records without valid credentials. This could lead to data corruption, loss of customer information, or campaign sabotage.

Technologies: Oracle Siebel CRM. Vendors: Oracle.

Quick answers

Is CVE-2026-101393 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-101393 being exploited in the wild.
How severe is CVE-2026-101393?: Medium severity, with a CVSS score of 4.3, published 20 October 2026.
Which products and versions are affected?: Oracle Siebel CRM 17.0-26.9.
Is there a fix for CVE-2026-101393?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-101393 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-101393?: Check whether you run Oracle Siebel CRM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An easily exploitable authorization flaw in Siebel CRM's Marketing module permits unauthenticated network-based attacks (CVSS vector AV:N) with user interaction (UI:R). The vulnerability allows attackers to perform unauthorized modifications to application data, with integrity (I:L) as the primary impact. The flaw affects versions 17.0 through 26.9 and requires no privilege level (PR:N).

Affected products

Oracle Siebel CRM 17.0-26.9

Timeline

2026-10-20: disclosed

References

https://www.oracle.com/security-alerts/cpuoct2026.html

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