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CVE-2021-2018

27
FAUCET Score

CVE-2021-2018 is a high-severity vulnerability (CVSS 8.3) affecting the Advanced Networking Option component of Oracle Database Server 18c and 19c, specifically on Windows platforms. An unauthenticated attacker can exploit this via Oracle Net, but successful attacks require human interaction and have high attack complexity. While targeting the Advanced Networking Option, a successful exploit can lead to its complete takeover and significantly impact additional products, resulting in high confidentiality, integrity, and availability impacts. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
18cCPE matchmatch criteria
cpe:2.3:a:oracle:advanced_networking_option:18c:*:*:*:*:*:*:.
19cCPE matchmatch criteria
cpe:2.3:a:oracle:advanced_networking_option:19c:*:*:*:*:*:*:.
11.1.2.3.0CPE matchmatch criteria
cpe:2.3:a:oracle:adaptive_access_manager:11.1.2.3.0:*:*:*:*:*:*:*
11.1.1.9.0CPE matchmatch criteria
cpe:2.3:a:oracle:data_integrator:11.1.1.9.0:*:*:*:*:*:*:*
12.2.1.3.0CPE matchmatch criteria
cpe:2.3:a:oracle:data_integrator:12.2.1.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 48th percentile among its peer group of 1,570 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

oraclevendor investigatingvia nvd_reference
View patch

References

oracle.com / security-alerts/cpujan2021.html
Vendor Advisory