CVE-2021-20492

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

2.07% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 79.8% of scored records. A rank, not a probability.

NVD base score

8.2 (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:N/A:L

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

2021-05-26 16:20Z5 YR AGO

Last updated

2024-09-16 17:15Z1 YR AGO

Reserved

2020-12-17

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase

Data version

5.1

Document digest

b375a0488f1ff396105ce95cda14afca6cc9232a949142f17109bd4d1f7df318

• www.ibm.comhttps://www.ibm.com/support/pages/node/6456017x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-was-cve202120492-xxe (197793)https://exchange.xforce.ibmcloud.com/vulnerabilities/197793vdb-entryx_refsource_XF