CVE-2021-20386

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

0.65% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 50.7% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

2021-05-24 13:55Z5 YR AGO

Last updated

2024-09-16 19:56Z2 YR AGO

Reserved

2020-12-17

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

c7a362c7df3dc4d5d894e0609722ad8c7b1ff2458907a923acc826cdb47438ad

• www.ibm.comhttps://www.ibm.com/support/pages/node/6455281x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-guardium-cve202120386-xss (195767)https://exchange.xforce.ibmcloud.com/vulnerabilities/195767vdb-entryx_refsource_XF