HOMEVULNERABILITIESCVE-2021-35587
HIGHCISA KEVIN THE WILD

CVE-2021-35587

Published: November 28, 2022

EPSS:94.26%probability of exploitation in 30 daysPercentile:99.9th

Official Description

Oracle Fusion Middleware Access Manager allows an unauthenticated attacker with network access via HTTP to takeover the Access Manager product.

NVD Source

CISA KEV Advisory

Oracle Fusion Middleware Unspecified Vulnerability

Oracle Fusion Middleware Access Manager allows an unauthenticated attacker with network access via HTTP to takeover the Access Manager product.

Added to KEV: 2022-11-28Federal patch deadline: 2022-12-19
Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Oracle Fusion Middleware Access Manager allows an unauthenticated attacker to take complete control of the product. The very high EPSS score of 0.94258 indicates a significant likelihood of exploitation, and its inclusion in the KEV confirms it is actively exploited.

This vulnerability is actively exploited in the wild, meaning that working exploits are circulating and being used by attackers. The flaw is remotely exploitable via HTTP by unauthenticated attackers.

Recommended Action

Apply all available security patches and updates for Oracle Fusion Middleware Access Manager. Restrict network access to the Access Manager to only necessary and trusted sources.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-35587 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-35587 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Affected Vendors & Products

Mentioned vendors (from description):
Oracle
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (2)

Quick Facts

CVE IDCVE-2021-35587
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)94.26%
PublishedNov 28, 2022

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-35587 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.