Vulnerability · Published Jul 29, 2026 · Assigned by schneider
CVE-2026-12927
High 8.4
In plain English
A high-severity out-of-bounds write in IGSS Definition (Def.exe) from Schneider Electric. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 4.0)8.4High
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
CWE-787 Out-of-bounds write vulnerability exists that could cause loss of data or potentially risk arbitrary code execution when a malicious CGF file is imported to IGSS Definition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Schneider Electric | IGSS Definition (Def.exe) | Version 18.0.0.26124 and prior |
Weakness: CWE-787 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N