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
- 99.84% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- 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
EPSS moved from 77.4% on 24 September 2026 to 99.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.