What is CVE-2020-2551?

CVE-2020-2551 is a critical-severity vulnerability in Oracle Weblogic Server. CVSS score: 9.8/10. Published 2020-01-15.

How severe is CVE-2020-2551?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-2551 known to be exploited?

Yes. CVE-2020-2551 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-11-16), indicating it is being actively exploited. 190 public proof-of-concept repositories are indexed.

Vulnerability in Oracle Weblogic Server

CVE-2020-2551

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: WLS Core Components). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

EPSS: 0.932 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Oracle Weblogic_server — versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0
Oracle Corporation Weblogic Server — versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-11-16. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-12-07.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

secalert_us@oracle.com (Patch, x_refsource_MISC, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2020-2551?: CVE-2020-2551 is a critical-severity vulnerability in Oracle Weblogic Server. CVSS score: 9.8/10. Published 2020-01-15.
How severe is CVE-2020-2551?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-2551 known to be exploited?: Yes. CVE-2020-2551 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-11-16), indicating it is being actively exploited. 190 public proof-of-concept repositories are indexed.