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Progress LoadMaster OS Command Injection via Geo Administration API Scores 8.4

Last refreshed2026-09-26

Status: EPSS-IMMINENT  |  Advisory ID: CVE-2026-3517

Key Details

CVECVE-2026-3517
CVSS Score / Version8.4 (High) / CVSS v3.1
Updated2026-09-23
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is adjacent; attack complexity is low; privileges required is high; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productsProgress LoadMaster, Progress Connection Manager for ObjectScale, and Progress ECS Connection Manager
Classified asCWE-77 (Improper Neutralization of Special Elements used in a Command ('Command Injection'))
Exploitation prediction (EPSS)4.18% probability of exploitation in the next 30 days (91% percentile) -- FIRST.org's EPSS model.

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
ProgressLoadMaster
ProgressConnection Manager for ObjectScale
ProgressECS Connection Manager
SubsystemsGeneral OT
SectorsMulti-sector

What to Know

OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “Geo Administration” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'addcountry' command

What to Do

Monitor Progress's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-3517
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-3517
Vendor advisoryhttps://community.progress.com/s/article/LoadMaster-Security-Vulnerabilites-CVE-2026-3517-CVE-2026-3518-CVE-2026-3519-CVE-2026-4048-CVE-2026-21876