Vulnerability · Published Oct 20, 2026 · Assigned by oracle

CVE-2026-91427

Low 2.3

In plain English

A low-severity security flaw in Siebel CRM Deployment from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)2.3Low

Exploit odds (30 days)0.2%top 94.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 2.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	Siebel CRM Deployment	17.0 – through 26.9

Weakness: CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

References

Oracle Advisory vendor-advisory