# CVE-2022-27944: Null dereference in n/a

> A NULL pointer dereference in Foxit PDF Reader and Editor allows attackers to cause a denial of service via crafted XFA data.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 6 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-6jg4-5jm4-569q

## What is CVE-2022-27944?

CVE-2022-27944 is a high-severity vulnerability in Foxit Pdf Editor, published on 6 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Foxit PDF Reader before 12.0.1 and PDF Editor before 12.0.1 allow an exportXFAData NULL pointer dereference.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2022-27944?

It affects 2 products.


Products: Foxit Pdf Editor, Foxit Pdf Reader.

## How do I fix CVE-2022-27944?

No fix has been published for CVE-2022-27944 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-27944 being exploited?

There is no known exploitation of CVE-2022-27944 in the wild and no public exploit code.

## Other vulnerabilities in Foxit Pdf Editor

- [CVE-2022-28104](https://insights.sbomify.com/CVE-2022-28104/): File upload in n/a (critical 9.8)
- [CVE-2022-24954](https://insights.sbomify.com/CVE-2022-24954/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-24955](https://insights.sbomify.com/CVE-2022-24955/): Other in n/a (critical 9.8)
- [CVE-2026-91798](https://insights.sbomify.com/CVE-2026-91798/): Foxit PDF Editor/Reader Updater Privilege Escalation (high 8.8)
- [CVE-2026-91800](https://insights.sbomify.com/CVE-2026-91800/): Foxit PDF Editor installer local privilege escalation (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-27944 and fix it if it is affected.

What it is: CVE-2022-27944 is a high-severity vulnerability in Foxit Pdf Editor, published on 6 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-27944 in the wild and no public exploit code.

Affected product: Foxit Pdf Editor. 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-2022-27944/ (Markdown: https://insights.sbomify.com/CVE-2022-27944/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27944
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27944
- OSV: https://osv.dev/vulnerability/CVE-2022-27944

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-27944/
Summaries are generated and may contain mistakes; the official description above is the record.