# CVE-2025-9904: Memory corruption in CARPS2 Printer Driver

> Attackers can exploit unallocated memory access in Canon printer drivers to execute arbitrary code or cause denial of service.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Sep 2025
- **Updated:** 15 Mar 2026
- **Also known as:** GHSA-hv8v-h5q2-gmv5

## What is CVE-2025-9904?

CVE-2025-9904 is a medium-severity memory corruption vulnerability in Canon Inc. CARPS2 Printer Driver, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Unallocated memory access vulnerability in print processing of Generic Plus PCL6 Printer Driver / Generic Plus UFR II Printer Driver / Generic Plus LIPS4 Printer Driver / Generic Plus LIPSLX Printer Driver / Generic Plus PS Printer Driver / UFRII LT Printer Driver / CARPS2 Printer Driver / Generic FAX Driver / LIPS4 Printer Driver / LIPSLX Printer Driver / UFR II Printer Driver / PS Printer Driver / PCL6 Printer Driver

Weakness: CWE-696 (Incorrect Behavior Order)

## Which versions are affected by CVE-2025-9904?


## How do I fix CVE-2025-9904?

No fix has been published for CVE-2025-9904 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-9904 being exploited?

There is no known exploitation of CVE-2025-9904 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-9904 and fix it if it is affected.

What it is: CVE-2025-9904 is a medium-severity memory corruption vulnerability in Canon Inc. CARPS2 Printer Driver, published on 29 Sep 2025. 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-2025-9904 in the wild and no public exploit code.

Affected product: Canon Inc. CARPS2 Printer Driver. 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-2025-9904/ (Markdown: https://insights.sbomify.com/CVE-2025-9904/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-9904
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-9904
- OSV: https://osv.dev/vulnerability/CVE-2025-9904

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-9904/
Summaries are generated and may contain mistakes; the official description above is the record.