# CVE-2025-58364: cups: Remote DoS via null dereference

> Remote attackers can crash CUPS services via null dereference in printer attribute validation, affecting default local network configurations.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Sep 2025
- **Updated:** 4 Nov 2025
- **Also known as:** ALPINE-CVE-2025-58364, ALSA-2025:22063, AZL-67133, AZL-67136, BELL-CVE-2025-58364, CLSA-2025-1759409921, CLSA-2025-1759410214, CLSA-2025-1760984077, CLSA-2025-1765463952, CLSA-2025-1765476676, CLSA-2025-1765477018, DEBIAN-CVE-2025-58364, GHSA-7qx3-r744-6qv4, RHSA-2025:22063, RLSA-2025:22063, UBUNTU-CVE-2025-58364

## What is CVE-2025-58364?

CVE-2025-58364 is a medium-severity vulnerability in OpenPrinting cups, published on 11 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remote DoS vulnerability available in local subnet in default configurations. It can cause the cups & cups-browsed to crash, on all the machines in local network who are listening for printers (so by default for all regular linux machines). On systems where the vulnerability CVE-2024-47176 (cups-filters 1.x/cups-browsed 2.x vulnerability) was not fixed, and the firewall on the machine does not reject incoming communication to IPP port, and the machine is set to be available to public internet, attack vector "Network" is possible. The current versions of CUPS and cups-browsed projects have the attack vector "Adjacent" in their default configurations. Version 2.4.13 contains a patch for CVE-2025-58364.

Weakness: CWE-476 (NULL Pointer Dereference), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-58364?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `cups` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-client` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-devel` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-filesystem` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-ipptool` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-libs` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups-lpd` | AlmaLinux:8 | All versions | 1:2.2.6-64.el8_10 |
| `cups` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-client` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-client-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-filesystem` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-ipptool` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-ipptool-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-libs-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-lpd` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups-lpd-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:2.2.6-64.el8_10 |
| `cups` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-client-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-debugsource` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-ipptool-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-libs` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-libs-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups-lpd-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:2.2.6-64.el8_10 |
| `cups` | Rocky Linux:8 | All versions | 1:2.2.6-64.el8_10 |

Products: Openprinting Cups.

## How do I fix CVE-2025-58364?

Apply the vendor's patch.

## Is CVE-2025-58364 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-58364 exists.

## Other vulnerabilities in OpenPrinting cups

- [CVE-2025-58060](https://insights.sbomify.com/CVE-2025-58060/): cups has Authentication bypass with AuthType Negotiate (high 8.0)
- [CVE-2026-34978](https://insights.sbomify.com/CVE-2026-34978/): Path traversal in cups (medium 6.5)
- [CVE-2026-34980](https://insights.sbomify.com/CVE-2026-34980/): OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network (medium 6.1)
- [CVE-2025-61915](https://insights.sbomify.com/CVE-2025-61915/): OpenPrinting CUPS vulnerable to stack based out-of-bound write (medium 6.0)
- [CVE-2026-55480](https://insights.sbomify.com/CVE-2026-55480/): CUPS copy_model() creates a predictable PPD tempfile without O_EXCL/O_NOFOLLOW (symlink TOCTOU, lp → root) (medium 5.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-58364 and fix it if it is affected.

What it is: CVE-2025-58364 is a medium-severity vulnerability in OpenPrinting cups, published on 11 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-58364 exists.

Affected product: OpenPrinting cups. 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-2025-58364/ (Markdown: https://insights.sbomify.com/CVE-2025-58364/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-58364
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-58364
- OSV: https://osv.dev/vulnerability/CVE-2025-58364

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-58364/
Summaries are generated and may contain mistakes; the official description above is the record.