High severity · published Aug 18, 2026
CVE-2026-62591
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration)
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Siebel CRM Integration · Oracle Corporation
25.12 through 26.6 · source: vendor
SC
Siebel Crm · Oracle
25.12 through 26.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-62591
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-62591
Vendor Advisory
https://www.oracle.com/security-alerts/cspuaug2026.html
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