How severe is CVE-2019-19877?

CVE-2019-19877 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-19877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19877?

CVE-2019-19877 affects Br-automation Industrial Automation Aprol. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19877?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-19877 published?

CVE-2019-19877 was published on 2020-11-27 and last updated on 2026-06-17.

CVE-2019-19877

CVE-2019-19877 is a medium-severity vulnerability in Br-automation Industrial Automation Aprol with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Br-automation Industrial Automation Aprol
Published: 2020-11-27
Last modified: 2026-06-17

Description

An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. An attacker can get access to sensitive information outside the working directory via Directory Traversal attacks against AprolSqlServer, a different vulnerability than CVE-2019-16357.

Frequently asked questions

What is CVE-2019-19877?: An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. An attacker can get access to sensitive information outside the working directory via Directory Traversal attacks against AprolSqlServer, a different vulnerability than CVE-2019-16357.
How severe is CVE-2019-19877?: CVE-2019-19877 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-19877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19877?: CVE-2019-19877 affects Br-automation Industrial Automation Aprol. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19877 published?: CVE-2019-19877 was published on 2020-11-27 and last updated on 2026-06-17.

References

https://www.br-automation.com/downloads_br_productcatalogue/BRP44400000000000000585952/APROL_R42_A1_ReleaseNotes_001.pdf

Affected products (1)

cpe:2.3:a:br-automation:industrial_automation_aprol:*:*:*:*:*:*:*:*

More vulnerabilities in Br-automation Industrial Automation Aprol

CVE-2022-43764 — Critical (CVSS 9.8): Insufficient validation of input parameters when changing configuration on Tbase server in B&R APROL versions < R…
CVE-2019-19876 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. An EnMon PHP script was vulnerable to SQL…
CVE-2019-19875 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. Arbitrary commands could be injected…
CVE-2019-19874 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. Some web scripts in the web interface…
CVE-2019-19872 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. The AprolLoader could be used to inject…
CVE-2022-43761 — Critical (CVSS 9.4): Missing authentication when creating and managing the B&R APROL database in versions < R 4.2-07 allows reading and…

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