What is CVE-2018-1515?

CVE-2018-1515 is a high-severity vulnerability in IBM Db2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.4/10. Published 2018-05-25.

How severe is CVE-2018-1515?

High severity. CVSS v3 base score is 7.4 out of 10.

Buffer overflow in IBM Db2

CVE-2018-1515

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 10.5 and 11.1, under specific or unusual conditions, could allow a local user to overflow a buffer which may result in a privilege escalation to the DB2 instance owner. IBM X-Force ID: 141624.

Vulnerability class: Buffer Overflow

Published 2018-05-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (26.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Db2 — versions 10.5, 11.1
IBM Db2 For Linux, Unix And Windows — versions 10.5, 11.1
Linux Kernel
Microsoft Windows

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.securitytracker.com/id/1040969 (VDB Entry, Third Party Advisory, vdb-entry)
exchange.xforce.ibmcloud.com/vulnerabilities/141624 (VDB Entry, vdb-entry, Vendor Advisory)
www.ibm.com/support/docview.wss (Vendor Advisory)

Frequently asked questions

What is CVE-2018-1515?: CVE-2018-1515 is a high-severity vulnerability in IBM Db2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.4/10. Published 2018-05-25.
How severe is CVE-2018-1515?: High severity. CVSS v3 base score is 7.4 out of 10.