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VULNERABILITY BRIEF 🟠 High Vulnerability

Remote Code Execution in Progress Software Kemp LoadMaster (CVE-2026-8037) Threatens Load Balancer Administration

A memory‑initialization bug in Kemp LoadMaster (CVE‑2026‑8037) enables authenticated attackers to execute arbitrary code with administrator rights. The flaw affects all unpatched LoadMaster appliances, posing a supply‑chain risk for organizations that rely on third‑party load‑balancing services.

Verisq™ Intelligence · 📅 June 10, 2026 · 📰 zerodayinitiative.com
🟠
Severity
High
VU
Type
Vulnerability
🎯
Confidence
High
🏢
Affected
2 sector(s)
✅
Actions
5 recommended
📰
Source
zerodayinitiative.com

Remote Code Execution in Progress Software Kemp LoadMaster (CVE-2026-8037) Threatens Load Balancer Administration

What It Is – A memory‑initialization flaw in the dolistapikeys method of Progress Software’s Kemp LoadMaster load balancer permits authenticated remote attackers to execute arbitrary code with administrator privileges.

Exploitability – The vulnerability (CVE‑2026‑8037) has a CVSS 7.2 (High) score. Exploits require valid credentials, but no public PoC has been released; the vendor has issued a patch.

Affected Products – Progress Software / Kemp LoadMaster (all supported versions prior to the June 2026 security update).

TPRM Impact – LoadMaster devices are often deployed as third‑party load‑balancing services for SaaS, cloud‑infra, and e‑commerce platforms. A compromised appliance can be leveraged to pivot into customer environments, intercept traffic, or disrupt services, creating a supply‑chain risk for downstream organizations.

Recommended Actions –

  • Verify the version of Kemp LoadMaster in use and apply the vendor’s June 2026 security update immediately.
  • Enforce multi‑factor authentication for all LoadMaster admin accounts.
  • Conduct a configuration audit to ensure only required API keys are present and rotate any potentially exposed keys.
  • Update network segmentation to isolate LoadMaster from sensitive internal systems.
  • Monitor logs for anomalous dolistapikeys activity and enable intrusion‑detection signatures for this CVE.

Source: Zero Day Initiative Advisory ZDI‑26‑341

📰 Original Source
http://www.zerodayinitiative.com/advisories/ZDI-26-341/ ↗

This Verisq Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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