[NEW] [high] Progress Software LoadMaster and MOVEit WAF: Multiple vulnerabilities

highCVE-2026-59686 CVE-2026-59687 CVE-2026-59688 CVE-2026-59689 CVE-2026-59690

An attacker from an adjacent network can exploit multiple vulnerabilities in Progress Software LoadMaster and Progress Software MOVEit to execute arbitrary code and gain root privileges.

CSIRTS triage

vendor: Progress Software product: LoadMaster and MOVEit WAF Remote code execution Privilege escalation

What: Multiple vulnerabilities allow arbitrary code execution and root privilege escalation.
Who is affected: Attackers from adjacent networks targeting LoadMaster and MOVEit WAF.
Urgency: Remediation is high urgency due to the potential for severe exploitation.
Action: Update LoadMaster and MOVEit WAF to the latest versions.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-28
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2544

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-596860.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all scored CVEs.
Low exploitation riskCVE-2026-596870.72% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.
Low exploitation riskCVE-2026-596880.72% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.
Low exploitation riskCVE-2026-596890.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.
Low exploitation riskCVE-2026-596900.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59686	coverage & exploitation status	NVD · CVE.org
CVE-2026-59687	coverage & exploitation status	NVD · CVE.org
CVE-2026-59688	coverage & exploitation status	NVD · CVE.org
CVE-2026-59689	coverage & exploitation status	NVD · CVE.org
CVE-2026-59690	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Progress Software LoadMaster

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-59690: A Missing Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manager,…nvd · 2026-07-27
highCVE-2026-59689: An Incorrect Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manag…nvd · 2026-07-27
highCVE-2026-59688: An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager,…nvd · 2026-07-27
highCVE-2026-59687: An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager,…nvd · 2026-07-27
highCVE-2026-59686: An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager,…nvd · 2026-07-27