# CVE-2021-40398: Memory corruption in ImageGear

> An out-of-bounds write in Accusoft ImageGear allows attackers to cause memory corruption and potentially execute code via a malicious file.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Apr 2022
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-pwxg-7j6q-62vv

## What is CVE-2021-40398?

CVE-2021-40398 is a high-severity memory corruption vulnerability in Accusoft Imagegear, published on 14 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An out-of-bounds write vulnerability exists in the parse_raster_data functionality of Accusoft ImageGear 19.10. A specially-crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-787 (Out-of-bounds Write), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2021-40398?

It affects 1 product.


Products: Accusoft Imagegear.

## How do I fix CVE-2021-40398?

No fix has been published for CVE-2021-40398 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-40398 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40398 exists.

## Other vulnerabilities in Accusoft Imagegear

- [CVE-2023-32653](https://insights.sbomify.com/CVE-2023-32653/): Memory corruption in ImageGear (critical 9.8)
- [CVE-2023-35002](https://insights.sbomify.com/CVE-2023-35002/): Memory corruption in ImageGear (critical 9.8)
- [CVE-2023-39453](https://insights.sbomify.com/CVE-2023-39453/): Use after free in ImageGear (critical 9.8)
- [CVE-2023-40163](https://insights.sbomify.com/CVE-2023-40163/): Memory corruption in ImageGear (critical 9.8)
- [CVE-2022-32588](https://insights.sbomify.com/CVE-2022-32588/): Memory corruption in ImageGear (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-40398 and fix it if it is affected.

What it is: CVE-2021-40398 is a high-severity memory corruption vulnerability in Accusoft Imagegear, published on 14 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40398 exists.

Affected product: Accusoft Imagegear. 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-2021-40398/ (Markdown: https://insights.sbomify.com/CVE-2021-40398/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-40398
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-40398
- OSV: https://osv.dev/vulnerability/CVE-2021-40398

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-40398/
Summaries are generated and may contain mistakes; the official description above is the record.