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major vulnerability· requires attention

Widely deployed Progress LoadMaster ADC; unauthenticated RCE via API; could takeover devices and disrupt networks.

Infrastructure

CVE-2026-8037

9.6
Critical
KEV · Exploited in wildEPSS 100%Patch availableJun 4, 2026

Unauthenticated RCE in Progress LoadMaster ADC API

common questions

Is CVE-2026-8037 being exploited?

Yes. CVE-2026-8037 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2026-8037?

CVE-2026-8037 is rated Critical with a CVSS score of 9.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-8037?

Yes. A fix has been recorded for CVE-2026-8037. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-8037 affect?

CVE-2026-8037 affects Progress LoadMaster ADC appliances, Progress ADC API endpoints. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-8037?

Patch ASAP when available; restrict API access; monitor devices.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Progress LoadMaster ADC appliancesProgress ADC API endpoints
impact

Remote attacker can execute commands on LoadMaster appliances via API endpoints, potentially full control and data exposure.

action required

Immediate action required

affected versions
Progress Software ECS Connections Manager
  • affected>= V7.2.60.0 and < V7.2.63.2
Progress Software LoadMaster
  • affected>= V7.2.60.0 and < V7.2.63.2
  • affected>= V7.2.45.12 and < V7.2.54.18
Progress Software MOVEit WAF
  • affected>= V7.2.60.0 and < V7.2.63.2
Progress Software Object Scale Connection Manager
  • affected>= V7.2.60.0 and < V7.2.63.2

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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