Vulnerability Monitor

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CVE-2021-42237


Sitecore XP 7.5 Initial Release to Sitecore XP 8.2 Update-7 is vulnerable to an insecure deserialization attack where it is possible to achieve remote command execution on the machine. No authentication or special configuration is required to exploit this vulnerability.


Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from sitecore organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-11-05T10:15:08.240

Last Modified

2025-11-10T14:43:39.200

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-502
  • Type: Secondary
    CWE-502

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application sitecore experience_platform 7.5 Yes
Application sitecore experience_platform 7.5 Yes
Application sitecore experience_platform 7.5 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.0 Yes
Application sitecore experience_platform 8.1 Yes
Application sitecore experience_platform 8.1 Yes
Application sitecore experience_platform 8.1 Yes
Application sitecore experience_platform 8.1 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes
Application sitecore experience_platform 8.2 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sitecore's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.