CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2023-21839: Oracle WebLogic Server Unspecified Vulnerability

criticalknown exploitedpublic exploitCVE-2023-21839
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.

CSIRTS triage

vendor: Oracleproduct: WebLogic ServerOther
What
An unspecified vulnerability allows unauthenticated network access to compromise the server.
Who is affected
Deployments of Oracle WebLogic Server are affected.
Urgency
Immediate action is required as the vulnerability is actively exploited and critical.
Action
Update to the latest version of WebLogic Server.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch WebLogic Server

Get an email when a new WebLogic Server advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-05-01
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-21839

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-21839coverage & exploitation statusNVD · CVE.org

Recent advisories for Oracle WebLogic Server

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CISA Known Exploited Vulnerabilities