# CVE-2022-45494: Memory corruption in n/a

> A buffer overflow in the json_parse_object function allows attackers to execute arbitrary code and escalate privileges.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Jan 2023
- **Updated:** 27 Mar 2025
- **Also known as:** AZL-74520, GHSA-wvpq-p7pp-cj6m

## What is CVE-2022-45494?

CVE-2022-45494 is a high-severity memory corruption vulnerability in n/a, published on 31 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Buffer overflow vulnerability in function json_parse_object in sheredom json.h before commit 0825301a07cbf51653882bf2b153cc81fdadf41 (November 14, 2022) allows attackers to code arbitrary code and gain escalated privileges.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2022-45494?

It affects 1 product.


Products: Json.h Project Json.h.

## How do I fix CVE-2022-45494?

No fix has been published for CVE-2022-45494 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-45494 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45494 exists.

## Other vulnerabilities in n/a

- [CVE-2022-45496](https://insights.sbomify.com/CVE-2022-45496/): Memory corruption in n/a (high 8.8)
- [CVE-2022-45491](https://insights.sbomify.com/CVE-2022-45491/): Memory corruption in n/a (high 7.8)
- [CVE-2022-45492](https://insights.sbomify.com/CVE-2022-45492/): Memory corruption in n/a (high 7.8)
- [CVE-2022-45493](https://insights.sbomify.com/CVE-2022-45493/): Memory corruption in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-45494 and fix it if it is affected.

What it is: CVE-2022-45494 is a high-severity memory corruption vulnerability in n/a, published on 31 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45494 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-45494/ (Markdown: https://insights.sbomify.com/CVE-2022-45494/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-45494
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-45494
- OSV: https://osv.dev/vulnerability/CVE-2022-45494

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-45494/
Summaries are generated and may contain mistakes; the official description above is the record.