What is CVE-2017-1677?

CVE-2017-1677 is a high-severity vulnerability in IBM Db2, classified under Deserialization of Untrusted Data. CVSS score: 7.4/10. Published 2018-03-22.

How severe is CVE-2017-1677?

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

Deserialization in IBM Db2

CVE-2017-1677

IBM Data Server Driver for JDBC and SQLJ (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) deserializes the contents of /tmp/connlicj.bin which leads to object injection and potentially arbitrary code execution depending on the classpath. IBM X-Force ID: 133999.

Vulnerability class: Insecure Deserialization

Published 2018-03-22 · 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: 0.007 (51.6th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

IBM Db2 — versions 9.7, 10.1, 10.5
IBM Db2 For Linux, Unix And Windows — versions 9.7, 10.5, 10.1
Linux Kernel
Microsoft Windows

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.ibm.com/support/docview.wss (Vendor Advisory)
www.securitytracker.com/id/1041227 (vdb-entry)
www.securityfocus.com/bid/103422 (VDB Entry, Third Party Advisory, vdb-entry)
exchange.xforce.ibmcloud.com/vulnerabilities/133999 (VDB Entry, Vendor Advisory)

Frequently asked questions

What is CVE-2017-1677?: CVE-2017-1677 is a high-severity vulnerability in IBM Db2, classified under Deserialization of Untrusted Data. CVSS score: 7.4/10. Published 2018-03-22.
How severe is CVE-2017-1677?: High severity. CVSS v3 base score is 7.4 out of 10.