CVE-2019-19100

Privilege escalation via exposed upgrade service interface

Published Apr 29, 2020 · Updated Aug 5, 2024

Local privilege escalation in B&R Automation Studio allows local users to delete arbitrary files through the upgrade service interface. The service exposes an interface that accepts file-deletion requests from a logged-in Windows user and performs them with elevated service privileges. Access to the Windows host is required, and deletion of arbitrary files can damage system integrity or interrupt engineering operations.

CVSS severity7.5
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in B&R Automation Studio allows local users to delete arbitrary files through the upgrade service interface. The service exposes an interface that accepts file-deletion requests from a logged-in Windows user and performs them with elevated service privileges. Access to the Windows host is required, and deletion of arbitrary files can damage system integrity or interrupt engineering operations.

The record

CVE
CVE-2019-19100
Published
Apr 29, 2020
Updated
Aug 5, 2024
Vendor
B&R Industrial Automation
Product
Automation Studio
Classifications
CWE-264, T1485
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.0.x
  2. Affected versionversion=4.1.x
  3. Affected versionversion=4.2.x
  4. Affected versionversion=< 4.3.11SP
  5. Affected versionversion=< 4.4.9SP
  6. Affected versionversion=< 4.5.4SP
  7. Affected versionversion=< 4.6.3SP
  8. Affected versionversion=< 4.7.2
  9. Affected versionversion=< 4.8.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

B&R Industrial Automation · Automation Studioversion=4.0.x; version=4.1.x; version=4.2.x; version=< 4.3.11SP; version=< 4.4.9SP; version=< 4.5.4SP; version=< 4.6.3SP; version=< 4.7.2; version=< 4.8.1

Published CVSS scores

7.5Asea Brown Boveri Ltd. (ABB)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
3.6NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-264Permissions, Privileges, and Access Controls
T1485Data Destruction

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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