CVE-2026-71100: Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS accessible data. in Oracle Corporation Oracle Database Server
CVE-2026-71100 is a vulnerability in Oracle Database Server's RDBMS component affecting versions 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. It allows an unauthenticated attacker with network access via Oracle Net to gain unauthorized read access to some data within the database. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity level. No official patch or remediation level is explicitly stated in the advisory, but Oracle strongly recommends applying security patches promptly. The vendor advisory is part of Oracle's August 2026 Critical Security Patch Update, which includes numerous security fixes across Oracle products.
AI Analysis
Technical Summary
This vulnerability in Oracle Database Server's RDBMS component allows an unauthenticated attacker with network access via Oracle Net to compromise the database by gaining unauthorized read access to a subset of accessible data. The affected versions are 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) indicates network attack vector, low attack complexity, no privileges or user interaction required, and confidentiality impact only. Oracle's August 2026 Critical Security Patch Update advisory references this vulnerability among many others and urges customers to apply patches without delay to mitigate risks.
Potential Impact
Successful exploitation results in unauthorized read access to a subset of data accessible within the Oracle Database Server. There is no impact on integrity or availability. The vulnerability can be exploited remotely without authentication, increasing risk exposure if patches are not applied.
Mitigation Recommendations
Oracle's August 2026 Critical Security Patch Update includes fixes for this vulnerability. Customers are strongly advised to remain on actively-supported versions and apply the available security patches promptly to mitigate this vulnerability. Patch status is not explicitly stated in the advisory text provided; therefore, check the vendor advisory for current patch availability and installation instructions.
CVE-2026-71100: Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS accessible data. in Oracle Corporation Oracle Database Server
Description
CVE-2026-71100 is a vulnerability in Oracle Database Server's RDBMS component affecting versions 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. It allows an unauthenticated attacker with network access via Oracle Net to gain unauthorized read access to some data within the database. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity level. No official patch or remediation level is explicitly stated in the advisory, but Oracle strongly recommends applying security patches promptly. The vendor advisory is part of Oracle's August 2026 Critical Security Patch Update, which includes numerous security fixes across Oracle products.
CVSS v3.1
Score 5.3medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Oracle Database Server's RDBMS component allows an unauthenticated attacker with network access via Oracle Net to compromise the database by gaining unauthorized read access to a subset of accessible data. The affected versions are 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) indicates network attack vector, low attack complexity, no privileges or user interaction required, and confidentiality impact only. Oracle's August 2026 Critical Security Patch Update advisory references this vulnerability among many others and urges customers to apply patches without delay to mitigate risks.
Potential Impact
Successful exploitation results in unauthorized read access to a subset of data accessible within the Oracle Database Server. There is no impact on integrity or availability. The vulnerability can be exploited remotely without authentication, increasing risk exposure if patches are not applied.
Mitigation Recommendations
Oracle's August 2026 Critical Security Patch Update includes fixes for this vulnerability. Customers are strongly advised to remain on actively-supported versions and apply the available security patches promptly to mitigate this vulnerability. Patch status is not explicitly stated in the advisory text provided; therefore, check the vendor advisory for current patch availability and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-04T22:06:34.617Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccd0c6e8be0332c3908a
Added to database: 08/18/2026, 21:21:20 UTC
Last enriched: 08/18/2026, 23:06:28 UTC
Last updated: 08/18/2026, 23:06:28 UTC
Views: 2
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