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CVE Vulnerability Details :
CVE-2026-1577
PUBLISHED
More InfoOfficial Page
Assigner-ibm
Assigner Org ID-9a959283-ebb5-44b6-b705-dcc2bbced522
View Known Exploited Vulnerability (KEV) details
Published At-30 Apr, 2026 | 21:49
Updated At-10 May, 2026 | 13:21
Rejected At-
▼CVE Numbering Authority (CNA)
IBM® Db2® is vulnerable to a denial of service with a specially crafted query involving multiple subqueries

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in data query logic.

Affected Products
Vendor
IBM CorporationIBM
Product
Db2
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:*:*:*:*:*:*:*
Versions
Affected
  • From 11.5.0 through 11.5.9 (semver)
  • From 12.1.0 through 12.1.4 (semver)
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

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.

Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.ibm.com/support/pages/node/7269434
vendor-advisory
patch
Hyperlink: https://www.ibm.com/support/pages/node/7269434
Resource:
vendor-advisory
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-20CWE-20 Improper Input Validation
Type: CWE
CWE ID: CWE-20
Description: CWE-20 Improper Input Validation
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found