Buffer overflow when changing configuration on Tbase Server

published 2023-02-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-46735

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Insufficient validation of input parameters when changing configuration on Tbase server in B&R APROL versions < R 4.2-07 could result in buffer overflow. This may lead to Denial-of-Service conditions or execution of arbitrary code.

Patch / fix

fixed in 1

br-automation industrial_automation_aprol r4.2-07

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 19 mo ago (2025-03-25)

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

B&R Industrial Automation B&R APROL

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-787 Out-of-bounds Write

References

br-automation.com /downloads_br_productcatalogue/assets/1674823095245-en-original-1.0.pdf
vendor-advisory

Sources

CVE List CVE-2022-43764
NVD CVE-2022-43764

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary