CVE-2021-20496

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

Ranks above 48.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/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

2021-07-15 17:15Z5 YR AGO

Last updated

2024-09-16 20:36Z1 YR AGO

Reserved

2020-12-17

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Low (CVSS 2.7)

CNA CVSS vector

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

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

f2b3ddd826f8d7921e664d53756207375a4921699fcd6cf4eb1aa349e81d7fef

• www.ibm.comhttps://www.ibm.com/support/pages/node/6471895x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-sam-cve202120496-sec-bypass (197966)https://exchange.xforce.ibmcloud.com/vulnerabilities/197966vdb-entryx_refsource_XF