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01 Record

CVE-2020-4420

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

HighPUBLISHEDCNA: ibm
CNA base score7.5 CVSS v3.xCVSS:3.0/I:N/AV:N/S:U/C:N/PR:N/UI:N/A:H/AC:L/RC:C/RL:O/E:U
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02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.41% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 83.6% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-07-01 14:25Z6 YR AGO
Last updated
2024-09-16 20:52Z2 YR AGO
Reserved
2019-12-30
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
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
Weaknesses
  • CWE-404Improper Resource Shutdown or ReleaseClass
Data version
5.1
Document digest
f0581cf780fc03aa85622a2245d40ddd95712f45b44f13545ff46e4a8fceba69

05 Affected products

VendorProductVersionsPlatforms
IBMDB2 for Linux- UNIX and Windows9.7, 10.1, 10.5, 11.1, 11.5—

06 References