CVE-2026-73966 Auth bypass in Siebel Apps - Marketing
High-privileged attackers can compromise Siebel Apps - Marketing via HTTP, leading to full system takeover.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73966?
CVE-2026-73966 is a high-severity authentication bypass vulnerability in Oracle Corporation Siebel Apps - Marketing, published on 15 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel Apps - Marketing. Successful attacks of this vulnerability can result in takeover of Siebel Apps - Marketing. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-284
Which versions are affected by CVE-2026-73966?
How do I fix CVE-2026-73966?
No fix has been published for CVE-2026-73966 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-73966 being exploited?
There is no known exploitation of CVE-2026-73966 in the wild and no public exploit code.
Sources
Also known as GHSA-4685-rfj7-2f23.