There is an invalid memory access in the function fprintf located in Error.cc in Xpdf…
Priority LOW 36CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
There is an invalid memory access in the function fprintf located in Error.cc in Xpdf 4.0.2. It can be triggered by sending a crafted PDF file to the pdftohtml binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.
Why it matters now
EPSS 0.01055 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xpdfreader:xpdf:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | Xpdfreader |
- cpe:2.3:a:xpdfreader:xpdf:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Xpdfreader
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-24999
- 2026-10-03 Alias added: GHSA-3jqc-q5pp-f8hm
References
More Xpdfreader Xpdf vulnerabilities
- TI-2021-11232 Integer overflow in Apple macOS KEVCVSS 3.1HIGH 7.8
- TI-2024-03046 Stack overflow in Xpdf 4.05 due to object loop in attachments CVSS 3.1MEDIUM 5.5
- TI-2024-03045 Stack overflow in Xpdf 4.05 due to object loop in PDF object stream CVSS 3.1MEDIUM 5.5
- TI-2023-02492 Stack overflow in Xpdf 4.04 due to object loop in PDF embedded file tree CVSS 3.1MEDIUM 5.5
- TI-2022-22500 Stack overflow vulnerability in function gmalloc in goo/gmem.cc in xpdf 4.04, allows… CVSS 3.1MEDIUM 5.5
- TI-2022-22499 Stack overflow vulnerability in function Dict::find in xpdf/Dict.cc in xpdf 4.04, allows… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2020-24999 · CVE Program
- CVE-2020-24999 · NVD
- FIRST EPSS
- GHSA-3jqc-q5pp-f8hm · GitHub Advisory Database · CC BY 4.0
- CVE-2020-24999 · 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