CVE-2026-59688: An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, and MOVEit WAF allows an authenticated attacker with

highCVSS 8.4CVE-2026-59688

An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, and MOVEit WAF allows an authenticated attacker with high privileges to execute arbitrary operating system commands on the affected appliance via the backup restore functionality, potentially resulting in complete system compromise.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.4
Published: 2026-07-27
Last updated: 2026-07-28
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-59688

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-2026-596880.72% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59688	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

criticalProgress security advisory (AV26-755)cccs
high[NEW] [high] Progress Software LoadMaster and MOVEit WAF: Multiple vulnerabilitiescert-bund

Recent advisories for An OS Command

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.

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highCVE-2026-44098: This vulnerability allows an unauthenticated remote attacker with control over the OCPP backen…nvd · 2026-07-30
highCVE-2026-61376: ELECOM wireless LAN routers and access points devices contain an OS Command Injection vulnerab…nvd · 2026-07-28
highCVE-2026-59764: ELECOM wireless LAN routers and access points devices contain an OS Command Injection vulnerab…nvd · 2026-07-28