What is CVE-2019-18858?

CVE-2019-18858 is a critical-severity vulnerability in Codesys Control_for_beaglebone, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2019-11-20.

How severe is CVE-2019-18858?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Codesys Control_for_beaglebone

CVE-2019-18858

CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (77.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-18858?: CVE-2019-18858 is a critical-severity vulnerability in Codesys Control_for_beaglebone, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2019-11-20.
How severe is CVE-2019-18858?: Critical severity. CVSS v3 base score is 9.8 out of 10.