Vulnerability Details Title: Schneider Electric IGSS CGF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability ID: - ZDI-21-095 - ZDI-CAN-11296 - CVE-2020-7556 CVSS Score: 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) Affected Vendor: Schneider Electric Affected Product: IGSS Vulnerability Details This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric IGSS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CGF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Additional Details Schneider Electric has issued an update to correct this vulnerability. More details can be found at: SEVD-2020-315-03 Disclosure Timeline 2020-08-07: Vulnerability reported to vendor 2021-01-29: Coordinated public release of advisory 2021-01-29: Advisory Updated Credit kimiya