IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5 could allow an authenticated attacker to cause a denial of service d…

published 2020-02-19 6y ago modified 2026-06-17 4mo ago also EUVD-2020-25408

cvss: 6.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits: 0; none known

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5 could allow an authenticated attacker to cause a denial of service due to incorrect handling of certain commands. IBM X-Force ID: 174341.

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Exploit prediction

1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.5	CVSS:3.0/A:H/PR:L/AC:L/C:N/UI:N/S:U/AV:N/I:N/RL:O/RC:C/E:U
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

IBM DB2 for Linux- UNIX and Windows

Classification

Technology feeds

IBM Db2 rss critical rss

References

ibm.com /support/pages/node/2874621
vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/174341
vdb-entry, vendor-advisory

Sources

CVE List CVE-2020-4161
NVD CVE-2020-4161

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