Use After Free in Foxit Software Pdf Reader
CVE-2018-3940
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused. An attacker needs to trick the user to open the malicious file to trigger.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Foxit Software Pdf Reader — versions 9.1.0.5096
- Foxitsoftware Phantompdf
- Foxitsoftware Reader
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1041769 (VDB Entry, Third Party Advisory, vdb-entry)
- talosintelligence.com/vulnerability_reports/TALOS-2018-0607 (Exploit, Third Party Advisory)
- www.foxitsoftware.com/support/security-bulletins.php (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-3940?
- CVE-2018-3940 is a high-severity vulnerability in Foxit Software Pdf Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2018-10-08.
- How severe is CVE-2018-3940?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-3940 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.