# CVE-2025-27830: Memory corruption in n/a

> A buffer overflow in Ghostscript allows attackers to execute arbitrary code or cause denial of service via malicious fonts.

- **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:** Yes
- **Published:** 25 Mar 2025
- **Updated:** 3 Nov 2025
- **Also known as:** ALPINE-CVE-2025-27830, BELL-CVE-2025-27830, DEBIAN-CVE-2025-27830, GHSA-5fxv-x2j7-rmwm, MINI-63v8-38c8-356q, UBUNTU-CVE-2025-27830

## What is CVE-2025-27830?

CVE-2025-27830 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 25 Mar 2025. 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

An issue was discovered in Artifex Ghostscript before 10.05.0. A buffer overflow occurs during serialization of DollarBlend in a font, for base/write_t1.c and psi/zfapi.c.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2025-27830?

It affects 1 product.


Products: Artifex Ghostscript.

## How do I fix CVE-2025-27830?

Upgrade to a fixed version.

## Is CVE-2025-27830 being exploited?

There is no known exploitation of CVE-2025-27830 in the wild and no public exploit code.

## Other vulnerabilities in Artifex Ghostscript

- [CVE-2017-8291](https://insights.sbomify.com/CVE-2017-8291/): Artifex Ghostscript Type Confusion (high 7.8, exploited in the wild)
- [CVE-2021-3781](https://insights.sbomify.com/CVE-2021-3781/): Command injection in ghostscript (critical 9.9)
- [CVE-2025-27831](https://insights.sbomify.com/CVE-2025-27831/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-27832](https://insights.sbomify.com/CVE-2025-27832/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-27836](https://insights.sbomify.com/CVE-2025-27836/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-27830 and fix it if it is affected.

What it is: CVE-2025-27830 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 25 Mar 2025. 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: There is no known exploitation of CVE-2025-27830 in the wild and no public exploit code.

Affected product: Artifex Ghostscript. 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-2025-27830/ (Markdown: https://insights.sbomify.com/CVE-2025-27830/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27830
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27830
- OSV: https://osv.dev/vulnerability/CVE-2025-27830

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-27830/
Summaries are generated and may contain mistakes; the official description above is the record.