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CVE-2023-21918

18
FAUCET Score

CVE-2023-21918 is a medium-severity vulnerability affecting the Oracle Database Recovery Manager in Oracle Database Server versions 19c and 21c. A highly privileged attacker with local SYSDBA access and network connectivity via Oracle Net can exploit this vulnerability to cause a complete denial of service (hang or crash) of the Recovery Manager, potentially impacting additional products. The CVSS 3.1 score is 6.8, indicating a network attack vector with low attack complexity and high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
19cCPE matchmatch criteria
cpe:2.3:a:oracle:database_recovery_manager:19c:*:*:*:*:*:*:*
21cCPE matchmatch criteria
cpe:2.3:a:oracle:database_recovery_manager:21c:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 48th percentile among its peer group of 3,566 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

oracle.com / security-alerts/cpuapr2023.html
PatchVendor Advisory