PT-2026-60890 · Schneider Electric · Igss Definition

CVE-2026-12927 · Published 2026-07-14 · Updated 2026-07-29

Positive Technologies (AI Summary)

CVSS v4.0

8.4

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions IGSS Definition (affected versions not specified)

Description An out-of-bounds write issue exists in the Def.exe executable of the IGSS Definition module. This occurs when a malicious CGF file is imported, which could lead to data loss or the execution of arbitrary code. An out-of-bounds write is a condition where the software writes data past the end of the intended buffer, potentially overwriting adjacent memory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2026-09951

CVE-2026-12927

Affected Products

Igss Definition

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-12927 · Security Note
• https://bdu.fstec.ru/vul/2026-09951 · Security Note
• https://se.com/ww/en/work/support/cybersecurity/security-notifications.jsp · Note
• https://download.se.com/files?p_Doc_Ref=SEVD-2026-195-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-195-01.pdf · Note