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Vulnerabilities

Vulnerability · CVE-2016-0638

Oracle WebLogic ClassFilter.class ServerChannelInputStream Bypass Java Deserialization

Published Jul 17, 2026 · catalog updated Jul 17, 2026 · Oracle WebLogic Server

Patch now

CVE-2016-0638 is in the CISA known-exploited catalog. Confirm Oracle WebLogic Server against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
62.92%
Remediation
Remediation guidance
Affected products
vendor Oracle WebLogic Server

Unspecified vulnerability in the Oracle WebLogic Server component in Oracle Fusion Middleware 10.3.6, 12.1.2, 12.1.3, and 12.2.1 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to Java Messaging Service. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Oracle WebLogic Serverversion unspecified

How to fix CVE-2016-0638

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2016-0638 is in the CISA known-exploited catalog. Confirm Oracle WebLogic Server against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 62.92%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 17, 2026 · VulnCheck KEV

    Detected

    Unspecified vulnerability in the Oracle WebLogic Server component in Oracle Fusion Middleware 10.3.6, 12.1.2, 12.1.3, and 12.2.1 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to Java Messaging Service. Initial-access exploit intelligence.

  2. Jul 17, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2016-0638

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2016-0638

    30-day exploitation probability 62.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2016-0638

    Unspecified vulnerability in the Oracle WebLogic Server component in Oracle Fusion Middleware 10.3.6, 12.1.2, 12.1.3, and 12.2.1 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to Java Messaging Service.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.