IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker t…

published 2020-07-01 6y ago modified 2026-06-17 4mo ago also EUVD-2020-25667

cvss: 7.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.4%; EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits: 0; none known

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the execution of a terminate command. IBM X-Force ID: 180076.

Patch / fix

links 1

ibm.com/support/pages/node/6242362 advisory

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Exploit prediction

2.41% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.5	CVSS:3.0/I:N/AV:N/S:U/C:N/PR:N/UI:N/A:H/AC:L/RC:C/RL:O/E:U
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

IBM DB2 for Linux- UNIX and Windows

Classification

Weakness

CWE-404 Improper Resource Shutdown or Release

Technology feeds

IBM Db2 rss critical rss

References

ibm.com /support/pages/node/6242362
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/180076
vdb-entry, vendor-advisory

Sources

CVE List CVE-2020-4420
NVD CVE-2020-4420

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