# CVE-2025-31163: fig2dev segmentation fault

> A local attacker can cause a denial of service in fig2dev by triggering a segmentation fault via crafted input in the put_patternarc function.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 28 Mar 2025
- **Updated:** 3 Nov 2025
- **Also known as:** DEBIAN-CVE-2025-31163, GHSA-gphp-6r8r-qhcw, UBUNTU-CVE-2025-31163

## What is CVE-2025-31163?

CVE-2025-31163 is a medium-severity vulnerability in xfig fig2dev, published on 28 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Segmentation fault in fig2dev in version 3.2.9a allows an attacker to availability via local input manipulation via put_patternarc function.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2025-31163?

It affects 1 product.


Products: Fig2dev Project Fig2dev.

## How do I fix CVE-2025-31163?

Upgrade to a fixed version.

## Is CVE-2025-31163 being exploited?

There is no known exploitation of CVE-2025-31163 in the wild and no public exploit code.

## Other vulnerabilities in xfig fig2dev

- [CVE-2025-46397](https://insights.sbomify.com/CVE-2025-46397/): Xfig: xfig: stack-overflow allows possible code execution via local input manipulation (high 7.8)
- [CVE-2025-31162](https://insights.sbomify.com/CVE-2025-31162/): fig2dev float point exception (medium 6.6)
- [CVE-2025-31164](https://insights.sbomify.com/CVE-2025-31164/): fig2dev heap-buffer overflow (medium 6.6)
- [CVE-2025-46398](https://insights.sbomify.com/CVE-2025-46398/): Xfig: fig2dev stack-overflow via read_objects (medium 5.5)
- [CVE-2025-46399](https://insights.sbomify.com/CVE-2025-46399/): Xfig: transfig: fig2dev segmentation fault vulnerability (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-31163 and fix it if it is affected.

What it is: CVE-2025-31163 is a medium-severity vulnerability in xfig fig2dev, published on 28 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-31163 in the wild and no public exploit code.

Affected product: xfig fig2dev. 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-2025-31163/ (Markdown: https://insights.sbomify.com/CVE-2025-31163/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-31163
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-31163
- OSV: https://osv.dev/vulnerability/CVE-2025-31163

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-31163/
Summaries are generated and may contain mistakes; the official description above is the record.