CVE-2023-22073

Adjacent-network disclosure of notification service data

Published Oct 17, 2023 · Updated Sep 13, 2024

Data disclosure in Oracle Notification Server in Oracle Database 19.3 through 19.20 and 21.3 through 21.11 allows attackers to read data via TLS. Oracle has not disclosed the operation within Oracle Notification Server that mishandles TLS traffic or exposes the data. Exploitation requires unauthenticated access to the same physical communication segment and reveals only a subset of service-accessible data.

CVSS severity4.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data disclosure in Oracle Notification Server in Oracle Database 19.3 through 19.20 and 21.3 through 21.11 allows attackers to read data via TLS. Oracle has not disclosed the operation within Oracle Notification Server that mishandles TLS traffic or exposes the data. Exploitation requires unauthenticated access to the same physical communication segment and reveals only a subset of service-accessible data.

The record

CVE
CVE-2023-22073
Published
Oct 17, 2023
Updated
Sep 13, 2024
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=19.3 <=19.20
  2. Affected versionversion=21.3 <=21.11

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=19.3 <=19.20; version=21.3 <=21.11

Published CVSS scores

4.3Oracle CorporationCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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