CVE-2026-6053

MEDIUM
Published May 27, 2026 Modified May 28, 2026 CWE-770

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 when a specially crafted query is run with range partitioned tables.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0010
Probability of exploitation
0.01%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor Product
ibm db2
ibm db2
ibm aix
ibm linux_on_ibm_z
linux linux_kernel
microsoft windows

References

Frequently Asked Questions

What is CVE-2026-6053? +
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service when a specially crafted query is run with range partitioned tables. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2026-6053? +
CVE-2026-6053 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0010, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-6053? +
CVE-2026-6053 affects products from ibm, linux, microsoft, specifically: aix, db2, linux_kernel, linux_on_ibm_z, windows. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-6053? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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