No exploitation reportedFix available

CVE-2019-19100

Q: Is CVE-2019-19100 actively exploited?

Active exploitation of CVE-2019-19100 has not been confirmed. Its EPSS score was 0.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-19100?

CVE-2019-19100 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-04-29
Fixed in4.7.2 · 4.6.3 · 4.5.4 · 4.4.9 · 4.3.11
WeaknessCWE-264

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A privilege escalation vulnerability in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.4SP, <. 4.6.3SP, < 4.7.2 and < 4.8.1 allow authenticated users to delete arbitrary files via an exposed interface.

Timeline

dates in UTC

2020-04-2903:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-19100?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-19100?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Br-automation automation studio

Branch	Affected	Fixed in	Source
4.7	≥ 4.7, < 4.7.2	4.7.2	NVD
4.6	≥ 4.6, < 4.6.3	4.6.3	NVD
4.5	≥ 4.5, < 4.5.4	4.5.4	NVD
4.4	≥ 4.4, < 4.4.9	4.4.9	NVD
4.3	≥ 4.3, < 4.3.11	4.3.11	NVD
4.0	≥ 4.0, ≤ 4.0.29.87	no fix published	NVD
4.1	≥ 4.1, ≤ 4.1.17.113	no fix published	NVD
4.2	≥ 4.2, ≤ 4.2.14.119	no fix published	NVD
4.8	= 4.8	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-20-093-01 CISA9 known affected
B&R Automation Studio
Automation Studio: versions prior to 4.4.9SP · Automation Studio: versions prior to 4.6.3SP · Automation Studio: Versions 4.1.x · +6 more

Full record on NVD

Fix

Update Br-automation automation studio to 4.7.2 · 4.6.3 · 4.5.4 · 4.4.9 · 4.3.11
Vendor fix CISA ICSA-20-093-01 · 9 productsB&R recommends applying product updates at the earliest convenience. Users of Automation Studio Versions 4.0.x, 4.1.x, and 4.2.x are advised to upgrade to a newer version of Automation Studio.
Vendor fix CISA ICSA-20-093-01 · 9 productsThe upgrade service now operates with reduced privileges. Additionally, the deletion process is restricted to Automation Studio downloaded files and directories.
Vendor fix CISA ICSA-20-093-01 · 9 productsB&Rs upgrade server now serves HTTPS links in the configuration files. Additionally, Microsoft .NET Framework certificate checks are now being used in the Automation Studio upgrade service.
Vendor fix CISA ICSA-20-093-01 · 9 productsAutomation Studio 4.3 and later should be switched from the SharpZipLib to the .NET Framework, provided native ZIP archive implementation. For these versions the issue is not reproducible. For prior versions of Automation Studio, it is recommended to update the installation.
Vendor fix CISA ICSA-20-093-01 · 9 productsIt is possible to manually adjust the permissions of the Automation Studio upgrade. Access to the Automation Studio installation and the device it is used on should be restricted.
Mitigation from the vendor CISA ICSA-20-093-01 · 9 productsAccess to zip archives is controlled and access of the zip archive is limited to trusted parties only.

Advisories and patches

www.br-automation.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.17.1read 2026-10-23
NVDCVSS 2.03.6read 2026-10-23
CNAweakness (CWE)CWE-264read 2026-10-23
FIRST EPSSEPSS score0.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Published: 2020-04-29
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-19100?

Is CVE-2019-19100 actively exploited?

Active exploitation of CVE-2019-19100 has not been confirmed. Its EPSS score was 0.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19100?

CVE-2019-19100 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Running B&R Automation Studio? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database