Is CVE-2018-2628 in the CISA KEV catalog?

Yes. CVE-2018-2628 is on the CISA Known Exploited Vulnerabilities list, added 2022-09-08.

What is the CVSS severity of CVE-2018-2628?

CVE-2018-2628 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-2628?

CVE-2018-2628 has an EPSS score of 99.45% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2018-2628?

No published fix for CVE-2018-2628 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-09-29. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2018-2628

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Core Components). Supported versions that are affected are 10.3.6.0, 12.1.3.0, 12.2.1.2 and 12.2.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 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).

CWE-502Deserialization of Untrusted Data

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-09-29

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

99.45%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Oracle WebLogic Server Unspecified Vulnerability

Oracle WebLogic Server contains an unspecified vulnerability which can allow an unauthenticated attacker with T3 network access to compromise the server.

Apply updates per vendor instructions.

Remediation due: 2022-09-29

References

Patch1

oracle.com

Exploit3

Third-Party Advisory2

Government Resource1

cisa.gov

Other references1

github.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41082	High	8.0	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-27.