CWE-824: Access of Uninitialized Pointer

The product accesses or uses a pointer that has not been initialized.

If the pointer contains an uninitialized value, then the value might not point to a valid memory location. This could cause the product to read from or write to unexpected memory locations, leading to a denial of service. If the uninitialized pointer is used as a function call, then arbitrary functions could be invoked. If an attacker can influence the portion of uninitialized memory that is contained in the pointer, this weakness could be leveraged to execute code or perform other attacks. Depending on memory layout, associated memory management behaviors, and product operation, the attacker might be able to influence the contents of the uninitialized pointer, thus gaining more fine-grained control of the memory location to be accessed.

Consequences

• Confidentiality: Read Memory
• Availability: DoS: Crash, Exit, or Restart
• Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands

Recent advisories

• CVE-2026-109619 — PHP has various global state that temporarily points into request memory.
• CVE-2026-109618 — PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request.
• GHSA-8qxc-57hf-hc9j — Open Babel has uninitialized pointer dereference in PQS pFormat
• GHSA-jr2x-6qf6-q5mc — Open Babel has uninitialized pointer dereference in MSI atom parser
• GHSA-mw5r-wq2m-397c — Open Babel has uninitialized pointer dereference in GRO residue parser
• GHSA-58qx-3vcg-4xpx — ws: Uninitialized memory disclosure
• GHSA-wj8w-pjxf-9g4f — ImageMagick has uninitialized pointer dereference in JBIG decoder
• GHSA-7f6x-jwh5-m9r4 — Cranelift vulnerable to miscompilation of constant values in division on AArch64
• GHSA-h6gw-r52c-724r — NULL Pointer Dereference and Access of Uninitialized Pointer in TensorFlow
• CVE-2022-21971 — Windows Runtime Remote Code Execution Vulnerability
• GHSA-57wx-m983-2f88 — Incomplete validation in boosted trees code
• GHSA-vwhq-49r4-gj9v — Reference binding to `nullptr` in `tf.ragged.cross`
• GHSA-786j-5qwq-r36x — Segfault while copying constant resource tensor
• GHSA-4f99-p9c2-3j8x — Undefined behavior via `nullptr` reference binding in sparse matrix multiplication
• GHSA-j86v-p27c-73fm — Unitialized access in `EinsumHelper::ParseEquation`

All advisories for CWE-824