How severe is CVE-2021-2353?

CVE-2021-2353 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-2353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-2353?

CVE-2021-2353 affects Oracle Siebel Core - Server Framework. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-2353?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-2353 published?

CVE-2021-2353 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-2353

CVE-2021-2353 is a medium-severity vulnerability in Oracle Siebel Core - Server Framework with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Siebel Core - Server Framework
Published: 2021-07-21
Last modified: 2026-06-17

Description

Vulnerability in the Siebel Core - Server Framework product of Oracle Siebel CRM (component: Loging). Supported versions that are affected are 21.5 and Prior. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Siebel Core - Server Framework executes to compromise Siebel Core - Server Framework. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel Core - Server Framework accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

Frequently asked questions

What is CVE-2021-2353?: Vulnerability in the Siebel Core - Server Framework product of Oracle Siebel CRM (component: Loging). Supported versions that are affected are 21.5 and Prior. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Siebel Core - Server Framework executes to compromise Siebel Core - Server Framework. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel Core - Server Framework accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
How severe is CVE-2021-2353?: CVE-2021-2353 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-2353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-2353?: CVE-2021-2353 affects Oracle Siebel Core - Server Framework. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-2353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-2353 published?: CVE-2021-2353 was published on 2021-07-21 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpujul2021.html

Affected products (1)

cpe:2.3:a:oracle:siebel_core_-_server_framework:*:*:*:*:*:*:*:*

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