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01 Record

CVE-2020-4581

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a chunked transfer-encoding HTTP/2 request. IBM X-Force ID: 184441.

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

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a chunked transfer-encoding HTTP/2 request. IBM X-Force ID: 184441.

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
1.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.3% 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
2020-09-21 14:55Z6 YR AGO
Last updated
2024-09-17 01:56Z2 YR AGO
Reserved
2019-12-30
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.0/S:U/UI:N/AC:L/C:N/I:N/PR:N/A:H/AV:N/RC:C/RL:O/E:U
Weaknesses
No CWE assigned
Data version
5.1
Document digest
a379e533f8aaf6ae3974f0098c4acb3b4f13aa002ef64842a684c48994d15f66

05 Affected products

VendorProductVersionsPlatforms
IBMDataPower Gateway2018.4.1.0, 2018.4.1.12—

06 References