What is CVE-2026-21837?

CVE-2026-21837 is a high-severity vulnerability in Hclsoftware Digital Experience, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-06-05.

How severe is CVE-2026-21837?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Hclsoftware Digital Experience

CVE-2026-21837

HCL Digital Experience is affected by an OS command injection vulnerability in the Digital Asset Management API. An attacker may execute arbitrary operating system commands, typically inheriting the privileges of the vulnerable applicatio…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.009 (56.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Hclsoftware Digital Experience — versions 9.5
Hcltech Digital_experience — versions 9.5
Hcltech Digital_experience_compose — versions 9.5

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

psirt@hcl.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21837?: CVE-2026-21837 is a high-severity vulnerability in Hclsoftware Digital Experience, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-06-05.
How severe is CVE-2026-21837?: High severity. CVSS v3 base score is 8.8 out of 10.