CUPS rastertopclx Filter Vulnerable to Heap Buffer Overflow Leading to Potential Arbitrary Code Execution
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.
Summary
cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In versions 2.0.1 and prior, a heap-buffer-overflow vulnerability in the rastertopclx filter causes the program to crash with a segmentation fault when processing maliciously crafted input data. This issue can be exploited to trigger memory corruption, potentially leading to arbitrary code execution. This issue has been patched via commit 956283c.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenPrinting | cups-filters | up to 2.0.1 | — | No fix listed | CNA |
- cups-filters VendorOpenPrinting Affected up to 2.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openprinting:cups-filters:*:*:*:*:*:*:*:* | up to 2.0.1 | Vulnerable | OpenPrinting |
- cpe:2.3:a:openprinting:cups-filters:*:*:*:*:*:*:*:* Versions up to 2.0.1 Vulnerable ·OpenPrinting
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-64524
References
More OpenPrinting Cups-filters vulnerabilities
- TI-2025-39895 [BIGSLEEP-434615384] cups-filters 1.x: out of bounds write in pdftoraster CVSS 3.1MEDIUM 4.0
- TI-2025-35695 [BIGSLEEP-434612419] CUPS-Filters has heap-buffer-overflow write in `cfImageLut()` CVSS 3.1LOW 3.7
Sources
- CVE-2025-64524 · CVE Program
- CVE-2025-64524 · NVD
- FIRST EPSS
- CVE-2025-64524 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences