CVE-2021-20509

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

1.75% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 75.8% 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.

Published

2021-08-12 16:05Z5 YR AGO

Last updated

2024-09-17 03:32Z1 YR AGO

Reserved

2020-12-17

Assigning CNA

ibm

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

CVSS:3.0/I:H/AC:H/S:U/A:H/UI:R/AV:L/PR:N/C:H/RC:C/RL:O/E:U

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

17be96faaabd6427b904f9d88683f89c4df36bdae6388ed5619a0b9d74107000

• www.ibm.comhttps://www.ibm.com/support/pages/node/6480377x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-maximo-cve202120509-code-exec (198243)https://exchange.xforce.ibmcloud.com/vulnerabilities/198243vdb-entryx_refsource_XF