CVE-2021-29855

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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 42.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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

2021-10-06 17:10Z5 YR AGO

Last updated

2024-09-17 01:05Z2 YR AGO

Reserved

2021-03-31

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

7e99bcf7952121f5c73b55c9db8111ffa470e1a6a53a30da94d2cc4b0efe68b9

• www.ibm.comhttps://www.ibm.com/support/pages/node/6495965x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-sterling-cve202129855-xss (205684)https://exchange.xforce.ibmcloud.com/vulnerabilities/205684vdb-entryx_refsource_XF