CVE-2026-3518

Authenticated command execution via unsanitized killsession input

Published Apr 20, 2026 · Updated Apr 20, 2026

OS command injection in affected Progress ADC appliances allows remote authenticated users with All permissions to execute arbitrary commands. The killsession command fails to sanitize API input before incorporating it into an operating system command, so attacker-supplied command text is executed. Exploitation requires an authenticated account assigned All permissions and grants command execution affecting appliance confidentiality, integrity, and availability.

CVSS severity8.4
High
EPSS probability16.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in affected Progress ADC appliances allows remote authenticated users with All permissions to execute arbitrary commands. The killsession command fails to sanitize API input before incorporating it into an operating system command, so attacker-supplied command text is executed. Exploitation requires an authenticated account assigned All permissions and grants command execution affecting appliance confidentiality, integrity, and availability.

The record

CVE
CVE-2026-3518
Published
Apr 20, 2026
Updated
Apr 20, 2026
Vendor
Progress Software Corporation
Product
MOVEit WAF
Classifications
CWE-77, CAPEC-88, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Apr 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V7.2.62.0 <V7.2.63.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Progress Software Corporation · MOVEit WAFversion=V7.2.62.0 <V7.2.63.0
Progress Software Corporation · ECS Connection Managerversion=V7.2.49.0 <V7.2.63.0
Progress Software Corporation · Connection Manager for ObjectScaleversion=V7.2.62.0 <V7.2.63.0
Progress Software Corporation · LoadMasterversion=V7.2.37.0 <V7.2.63.0

Published CVSS scores

8.4Progress Software CorporationCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CAPEC-88OS Command Injection
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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