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01 Record

CVE-2020-4829

IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in the ksu user command to gain root privileges. IBM X-Force ID: 189960.

HighPUBLISHEDCNA: ibm
CNA base score8.4 CVSS v3.xCVSS:3.0/AC:L/PR:N/A:H/I:H/AV:L/S:U/UI:N/C:H/RL:O/RC:C/E:U

02 Description

IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in the ksu user command to gain root privileges. IBM X-Force ID: 189960.

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
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.4% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/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
2020-12-10 22:11Z5 YR AGO
Last updated
2024-09-16 18:04Z2 YR AGO
Reserved
2019-12-30
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 8.4)
CNA CVSS vector
CVSS:3.0/AC:L/PR:N/A:H/I:H/AV:L/S:U/UI:N/C:H/RL:O/RC:C/E:U
Weaknesses
No CWE assigned
Data version
5.1
Document digest
a9bbde17c951b2ae60b71cb96abe291895f588b85a28c3385bdd6345b7e496dd

05 Affected products

VendorProductVersionsPlatforms
IBMVIOS3.1—
IBMAIX7.1, 7.2—

06 References