CVE-2026-8037
Progress LoadMaster Command Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 August 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an un-authenticated attacker to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in multiple command endpoints
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.57% probability · 100th percentile
- CISA KEV
- Listed 7 August 2026 · due 10 August 2026
- Weakness
- CWE-77
- Affected
- progress/connection manager for objectscale · progress/ecs connection manager · progress/moveit web application firewall · progress/loadmaster
- Source
- security@progress.com
CISA notes
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-8037
References
- https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691Patch, Vendor Advisory
- https://labs.watchtowr.com/enterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitialized-heap-to-pre-auth-rce-cve-2026-8037/Exploit, Patch, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037US Government Resource
- https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.