Is CVE-2022-36086 actively exploited?

No active exploitation of CVE-2022-36086 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-36086 be exploited remotely?

Yes. CVE-2022-36086 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-36086?

CVE-2022-36086 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-36086

CWE-119Published: September 7, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were missing a minimum size check for the given heap size argument. This could lead to out-of-bound writes when a heap was initialized with a size smaller than `3 * size_of::<usize>` because of metadata write operations. This vulnerability impacts all the initialization functions on the `Heap` and `LockedHeap` types, including `Heap::new`, `Heap::init`, `Heap::init_from_slice`, and `LockedHeap::new`. It also affects multiple uses of the `Heap::extend` method. Version 0.10.2 contains a patch for the issue. As a workaround, ensure that the heap is only initialized with a size larger than `3 * size_of::<usize>` and that the `Heap::extend` method is only called with sizes larger than `2 * size_of::<usize>()`. Also, ensure that the total heap size is (and stays) a multiple of `2 * size_of::<usize>()`.

NVD Source

Risk Analysis

The linked_list_allocator crate for Rust contains a memory safety vulnerability where heap initialization lacks a minimum size check, leading to out-of-bounds writes. This critical flaw has a CVSS score of 9.8.

No public exploit is known for this vulnerability.

Recommended Action

Update to version 0.10.2 or later. Alternatively, ensure heap initialization sizes exceed the required minimum of 3 * size_of::<usize>.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-36086 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.