SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-2039

Vulnerability in the Siebel Core - Server Framework product of Oracle Siebel CRM (component: Search).

HIGH 7.6EPSS 0.95%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Vulnerability in the Siebel Core - Server Framework product of Oracle Siebel CRM (component: Search). Supported versions that are affected are 20.12 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel Core - Server Framework. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel Core - Server Framework, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel Core - Server Framework accessible data as well as unauthorized update, insert or delete access to some of Siebel Core - Server Framework accessible data. CVSS 3.1 Base Score 7.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N).

CVSS 3.1
7.6 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
EPSS
0.95% probability · 61th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
oracle/siebel core - server framework
Source
secalert_us@oracle.com
EPSS trend
0%3%5%26 October 2026: 0.95%26 October 202626 October 2026

EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.