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CVE-2026-8037 CISA KEV — actively exploited

Progress LoadMaster Command Injection Vulnerability

Progress Software — LoadMaster

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 scoreCritical

9.6

EPSS — exploitation probabilityCritical

99.6%

Vector breakdown

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Published
Jun 4, 2026
Modified
Oct 15, 2026
Added to KEV
Aug 7, 2026
Federal patch due
Aug 10, 2026

CISA required action

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.

Weakness classification

Proof-of-concept & exploitation references

Public repositories whose name or description references CVE-2026-8037, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.

No public GitHub repositories referencing CVE-2026-8037 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.

References

Frequently asked questions

What is CVE-2026-8037?

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

How severe is CVE-2026-8037?

CVE-2026-8037 has a CVSS base score of 9.6 out of 10 (CVSS 3.1).

Is CVE-2026-8037 actively exploited in the wild?

Yes. CVE-2026-8037 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Aug 7, 2026, meaning CISA has confirmed evidence of active exploitation.

What is the EPSS score for CVE-2026-8037?

99.6% - meaning FIRST.org's EPSS model estimates a 99.6% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).

Is there exploit tooling available for CVE-2026-8037?

Yes - a public Nuclei template referencing CVE-2026-8037 exist in public repositories we checked.

What type of vulnerability is CVE-2026-8037?

CVE-2026-8037 is classified under CWE-77 (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')).

Cross-checked against

Impactr finds and proves whether CVE-2026-8037 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.