High severity · published Oct 16, 2023
CVE-2023-38740
IBM Db2 for Linux, UNIX, and Windows (includes Db2 Connect Server) 11.5 is vulnerable to a denial of service with a specially crafted SQL statement
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
IBM Db2 for Linux, UNIX, and Windows (includes Db2 Connect Server) 11.5 is vulnerable to a denial of service with a specially crafted SQL statement. IBM X-Force ID: 262613.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DB
Db2 · Ibm
11.5 through 11.5.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-38740
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-38740
VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/262613
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231116-0007/
Not Applicable
https://www.ibm.com/support/pages/node/7047489
Patch
https://www.ibm.com/support/pages/node/7047554
More from Db2
9.8
CVE-2026-10534
IBM® Db2® is vulnerable to buffer overflow in the IXF IMPORT parser
9.8
CVE-2026-10543
IBM® Db2® is vulnerable to privilege escalation with a specially crafted query
9.8
CVE-2026-10109
IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling
9.1
CVE-2018-1426
IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could…
8.8
CVE-2026-105464
IBM® Db2® is vulnerable to a local attacker with DBADM authorization gaining elevated privileges due to improper privilege management