Medium severity · published Oct 20, 2026
CVE-2026-101510
Vulnerability in the Oracle Net Services component of Oracle Database Server
4.4
CVSS
0.2%
EPSS
No
On KEV
Description
Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows high privileged attacker having None privilege with logon to the infrastructure where Oracle Net Services executes to compromise Oracle Net Services. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ON
Oracle Net Services · Oracle Corporation
19.3 through 19.32; 21.3 through 21.23; 23.4.0 through 23.26.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101510
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-101510
www.oracle.com
https://www.oracle.com/security-alerts/cpuoct2026.html
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