PDFio vulnerable to Denial Of Service when opening a corrupt PDF file
Priority LOW 27CWE-770Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
PDFio is a C library for reading and writing PDF files. In versions 1.1.0 and prior, a denial of service vulnerability exists in the pdfio parser. Crafted pdf files can cause the program to run at 100% utilization and never terminate. This is different from CVE-2023-24808. A patch for this issue is available in version 1.1.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| michaelrsweet | pdfio | up to 1.1.0 | — | No fix listed | CNA |
- pdfio Vendormichaelrsweet Affected up to 1.1.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pdfio_project:pdfio:*:*:*:*:*:*:*:* | before 1.1.1 | Vulnerable | Pdfio Project |
- cpe:2.3:a:pdfio_project:pdfio:*:*:*:*:*:*:*:* Versions before 1.1.1 Vulnerable ·Pdfio Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28428
References
More michaelrsweet vulnerabilities
- TI-2026-76283 Use after free in michaelrsweet mxml mxml_load_data CVSS 4.0MEDIUM 5.1
- TI-2026-74098 Off-by-one stack out-of-bounds write in Mini-XML mxml_strtod() CVSS 4.0LOW 2.0
- TI-2026-53919 PDFio < 1.6.5 Dangling Pointer via Dictionary String-Formatting CVSS 4.0HIGH 7.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences