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01 Record

CVE-2019-4279

IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM

CriticalPUBLISHEDCNA: ibm
CNA base score9.0 CVSS v3.xCVSS:3.0/S:C/A:H/AC:H/I:H/C:H/AV:N/PR:N/UI:N/RL:O/RC:C/E:U
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02 Description

IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM

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
79.92% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 99.5% of scored records. A rank, not a probability.
NVD base score
9.8 (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:H/I:H/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
2019-05-17 15:20Z7 YR AGO
Last updated
2024-09-17 01:45Z2 YR AGO
Reserved
2019-01-03
Assigning CNA
ibm
Record state
PUBLISHED
Severity
Critical (CVSS 9.0)
CNA CVSS vector
CVSS:3.0/S:C/A:H/AC:H/I:H/C:H/AV:N/PR:N/UI:N/RL:O/RC:C/E:U
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.1
Document digest
5ee2f5494a636222f942dd654e383af455577ef83b8b89b0f124adcde96b1637

05 Affected products

VendorProductVersionsPlatforms
IBMWebSphere Application Server8.5, 9.0—

06 References