CVE-2019-19108Network attack vector

Unauthenticated configuration changes via SNMP credential weakness

Published Apr 20, 2020 · Updated Aug 5, 2024

Authentication bypass in B&R Automation Runtime 2.96, 3.00 through 3.10, and 4.00 through 4.72 allows remote attackers to modify device configuration via SNMP. The SNMP service uses a hardcoded account name without a password and transmits data in plaintext, allowing unauthenticated write operations. Attackers able to reach an Ethernet interface can alter settings that disrupt or sever network communications, producing denial of service.

CVSS severity9.4
Critical
EPSS probability1.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in B&R Automation Runtime 2.96, 3.00 through 3.10, and 4.00 through 4.72 allows remote attackers to modify device configuration via SNMP. The SNMP service uses a hardcoded account name without a password and transmits data in plaintext, allowing unauthenticated write operations. Attackers able to reach an Ethernet interface can alter settings that disrupt or sever network communications, producing denial of service.

The record

CVE
CVE-2019-19108
Published
Apr 20, 2020
Updated
Aug 5, 2024
Vendor
B&R Industrial Automation
Product
Automation Runtime
Classifications
CWE-798, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 20, 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=2 <= 2.96
  2. Affected versionversion=3 <= 3.10
  3. Affected versionversion=4 <= 4.72

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

B&R Industrial Automation · Automation Runtimeversion=2 <= 2.96; version=3 <= 3.10; version=4 <= 4.72

Published CVSS scores

7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.4Asea Brown Boveri Ltd. (ABB)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1210Exploitation of Remote Services

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo