IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 could allow an authenticated user to overwrite arbirary files due to…

published 2021-06-24 5y ago modified 2026-06-17 4mo ago also EUVD-2020-26192

cvss: 6.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits: 0; none known

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 could allow an authenticated user to overwrite arbirary files due to improper group permissions. IBM X-Force ID: 191945.

Patch / fix

links 1

ibm.com/support/pages/node/6466367 advisory

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Exploit prediction

1.04% chance of exploitation in the next 30 days, higher than 64% 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:N/UI:N/I:H/AC:L/PR:L/AV:N/C:N/S:U/RL:O/E:U/RC:C
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CNA	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Affected products

IBM DB2 for Linux and UNIX

Classification

Weakness

CWE-732 Incorrect Permission Assignment for Critical Resource

Technology feeds

IBM Db2 rss critical rss

References

ibm.com /support/pages/node/6466367
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/191945
vdb-entry, vendor-advisory
security.netapp.com /advisory/ntap-20210720-0006/
third-party-advisory

Sources

CVE List CVE-2020-4945
NVD CVE-2020-4945

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