CRITICAL

CVE-2020-10245

Q: What is CVE-2020-10245?

CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow.

Q: Is CVE-2020-10245 actively exploited?

Active exploitation of CVE-2020-10245 has not been confirmed. Its EPSS score was 2.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-10245?

CVE-2020-10245 has a CVSS v3 base score of 9.8 (CRITICAL severity).

CVSS v3

9.8

CRITICAL

EPSS Score

2.5 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

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-26-076-01 CISA1 product fixed · 4 known affected
CODESYS in Festo Automation Suite
Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.0 · Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.5.16.10 · Festo Automation Suite 2.8.0.137 installed with CODESYS Development System 3.0
ICSA-25-273-04 CISA4 known affected
Festo Controller CECC-S,-LK,-D Family Firmware (Update A)
Festo Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D (All versions): vers:all/* · Festo Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK (All versions): vers:all/* · Festo Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S (All versions): vers:all/*

Full record on NVD

Description

CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow.

Technical details

Published: 2020-03-26

Frequently asked questions

What is CVE-2020-10245?

CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow.

Is CVE-2020-10245 actively exploited?

Active exploitation of CVE-2020-10245 has not been confirmed. Its EPSS score was 2.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-10245?

CVE-2020-10245 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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