# CVE-2025-14512: Glib: integer overflow in glib gio attribute escaping causes heap buffer overflow

> An integer overflow in GLib's GIO attribute escaping allows attackers to cause a heap buffer overflow and denial of service via malicious file attributes.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 11 Dec 2025
- **Updated:** 14 Oct 2026
- **Also known as:** AZL-72286, AZL-72299, BELL-CVE-2025-14512, DEBIAN-CVE-2025-14512, ECHO-25ea-0dde-e966, GHSA-2p5v-p767-wqv5, JLSEC-2026-489, MINI-f867-f7ff-v833, UBUNTU-CVE-2025-14512

## What is CVE-2025-14512?

CVE-2025-14512 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 11 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing malicious file or remote filesystem attribute values.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2025-14512?

It affects 3 products.


Products: Gnome Glib, Redhat Enterprise Linux, Redhat Openshift.

## How do I fix CVE-2025-14512?

Apply the vendor's patch.

## Is CVE-2025-14512 being exploited?

There is no known exploitation of CVE-2025-14512 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Enterprise Linux

- [CVE-2020-35457](https://insights.sbomify.com/CVE-2020-35457/): Integer overflow in n/a (high 7.8)
- [CVE-2009-3289](https://insights.sbomify.com/CVE-2009-3289/): Privilege escalation in n/a (high 7.8)
- [CVE-2025-13601](https://insights.sbomify.com/CVE-2025-13601/): Glib: integer overflow in in g_escape_uri_string() (high 7.7)
- [CVE-2026-58016](https://insights.sbomify.com/CVE-2026-58016/): Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (high 7.5)
- [CVE-2025-4056](https://insights.sbomify.com/CVE-2025-4056/): Glib: glib crash after long command line (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14512 and fix it if it is affected.

What it is: CVE-2025-14512 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 11 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-14512 in the wild and no public exploit code.

Affected product: Redhat Enterprise Linux. 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-2025-14512/ (Markdown: https://insights.sbomify.com/CVE-2025-14512/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14512
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14512
- OSV: https://osv.dev/vulnerability/CVE-2025-14512

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-14512/
Summaries are generated and may contain mistakes; the official description above is the record.