CVE-2026-1718

IBM® Db2® is vulnerable to a denial of service with a specially crafted query when running an AUTONOMOUS procedure

Published May 27, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service with a specially crafted query when autonomous transactions are enabled.

Remediation

Vendor Solution

Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent level for each impacted release: V11.5.9, and V12.1.4. They can be applied to any affected level of the appropriate release to remediate this vulnerability. ReleaseFixed in mod packAPARDownload URLV11.5TBD https://www.ibm.com/support/pages/node/7087189 V12.1 TBD https://www.ibm.com/support/pages/node/7267513 IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.


Vendor Workaround

remove AUTONOMOUS from procedure define

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ibm linux On Ibm Z
Linux
Linux linux Kernel
CPEs cpe:2.3:a:ibm:db2:*:*:*:*:-:*:*:*
cpe:2.3:o:ibm:linux_on_ibm_z:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Ibm linux On Ibm Z
Linux
Linux linux Kernel
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service with a specially crafted query when autonomous transactions are enabled.
Title IBM® Db2® is vulnerable to a denial of service with a specially crafted query when running an AUTONOMOUS procedure
First Time appeared Ibm
Ibm db2
Weaknesses CWE-770
CPEs cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:12.1.4:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm db2
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
May 27, 2026, 3:00 PM
Reserved
Jan 30, 2026, 7:11 PM
Status
Analyzed
Published
May 27, 2026, 2:16 PM
Modified
Oct 26, 2026, 11:10 AM