AEGLIX vulnerability intelligence
CVE-2021-42237
CRITICAL · CVSS 9.8 · Analyzed
Published: 2021-11-05 · Updated: 2026-07-09 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.8 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Sitecore · XP
- Added to catalog
- 2022-03-25
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-04-15
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:sitecore:experience_platform:7.5:-:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:7.5:update1:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:7.5:update2:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:-:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:sp1:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update1:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update2:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update3:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update4:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update5:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update6:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.0:update7:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.1:-:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.1:update1:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.1:update2:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.1:update3:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:-:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update1:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update2:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update3:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update4:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update5:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update6:*:*:*:*:*:*
cpe:2.3:a:sitecore:experience_platform:8.2:update7:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://packetstormsecurity.com/files/164988/Sitecore-Experience-Platform-XP-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- https://blog.assetnote.io/2021/11/02/sitecore-rce/
Exploit · Third Party Advisory
- https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1000776
Vendor Advisory
- http://packetstormsecurity.com/files/164988/Sitecore-Experience-Platform-XP-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- https://blog.assetnote.io/2021/11/02/sitecore-rce/
Exploit · Third Party Advisory
- https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1000776
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-42237
US Government Resource