CVE-2023-4039Published

GCC's-fstack-protector fails to guard dynamically-sized local variables on AArch64

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2023-4039

Published

Arm GNU Toolchain

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "defaultStatus": "affected",
                    "product": "Arm GNU Toolchain",
                    "vendor": "Arm Ltd",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "All versions where option -fstack-protector is used"
                        }
                    ]
                }

GCC

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "defaultStatus": "unaffected",
                    "product": "GCC",
                    "vendor": "GNU",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "All versions of GCC that target AArch64 when option -fstack-protector is used"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON