Vulnerability Database

388,075

Total vulnerabilities in the database

CVE-2026-21837 — hcltech / digital_experience

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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 application, which could possibly lead to a complete system takeover and data compromise.

  • Published: Jun 5, 2026
  • Updated: Sep 21, 2026
  • CVE: CVE-2026-21837
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

OWASP TOP 10:

Software Affected versions
hcltech / digital_experience = 9.5
hcltech / digital_experience = 9.5-cf17
hcltech / digital_experience = 9.5-cf171
hcltech / digital_experience = 9.5-cf172
hcltech / digital_experience = 9.5-cf173
hcltech / digital_experience = 9.5-cf18
hcltech / digital_experience = 9.5-cf181
hcltech / digital_experience = 9.5-cf182
hcltech / digital_experience = 9.5-cf183
hcltech / digital_experience = 9.5-cf184
hcltech / digital_experience = 9.5-cf19
hcltech / digital_experience = 9.5-cf191
hcltech / digital_experience = 9.5-cf192
hcltech / digital_experience = 9.5-cf193
hcltech / digital_experience = 9.5-cf194
hcltech / digital_experience = 9.5-cf195
hcltech / digital_experience = 9.5-cf196
hcltech / digital_experience = 9.5-cf197
hcltech / digital_experience = 9.5-cf198
hcltech / digital_experience = 9.5-cf199
hcltech / digital_experience = 9.5-cf200
hcltech / digital_experience = 9.5-cf201
hcltech / digital_experience = 9.5-cf202
hcltech / digital_experience = 9.5-cf203
hcltech / digital_experience = 9.5-cf204
hcltech / digital_experience = 9.5-cf205
hcltech / digital_experience = 9.5-cf206
hcltech / digital_experience = 9.5-cf207
hcltech / digital_experience = 9.5-cf208
hcltech / digital_experience = 9.5-cf209
hcltech / digital_experience = 9.5-cf210
hcltech / digital_experience = 9.5-cf211
hcltech / digital_experience = 9.5-cf212
hcltech / digital_experience = 9.5-cf213
hcltech / digital_experience = 9.5-cf214
hcltech / digital_experience = 9.5-cf215
hcltech / digital_experience = 9.5-cf216
hcltech / digital_experience = 9.5-cf217
hcltech / digital_experience = 9.5-cf218
hcltech / digital_experience = 9.5-cf219
hcltech / digital_experience = 9.5-cf220
hcltech / digital_experience = 9.5-cf221
hcltech / digital_experience = 9.5-cf222
hcltech / digital_experience = 9.5-cf223
hcltech / digital_experience = 9.5-cf224
hcltech / digital_experience = 9.5-cf225
hcltech / digital_experience = 9.5-cf226
hcltech / digital_experience = 9.5-cf227
hcltech / digital_experience = 9.5-cf228
hcltech / digital_experience = 9.5-cf229
hcltech / digital_experience = 9.5-cf230
hcltech / digital_experience = 9.5-cf231
hcltech / digital_experience = 9.5-cf232
hcltech / digital_experience = 9.5-cf233
hcltech / digital_experience = 9.5-cf234
hcltech / digital_experience_compose = 9.5
hcltech / digital_experience_compose = 9.5-cf224
hcltech / digital_experience_compose = 9.5-cf225
hcltech / digital_experience_compose = 9.5-cf226
hcltech / digital_experience_compose = 9.5-cf227
hcltech / digital_experience_compose = 9.5-cf228
hcltech / digital_experience_compose = 9.5-cf229
hcltech / digital_experience_compose = 9.5-cf230
hcltech / digital_experience_compose = 9.5-cf231
hcltech / digital_experience_compose = 9.5-cf232
hcltech / digital_experience_compose = 9.5-cf233
hcltech / digital_experience_compose = 9.5-cf234

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.