Use After Free in Foxit Pdf Reader
CVE-2018-3850
An exploitable use-after-free vulnerability exists in the JavaScript engine Foxit Software Foxit PDF Reader version 9.0.1.1049. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If a browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Vulnerability class: Use-After-Free
EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Foxit Pdf_reader — versions 9.0.1.1049
- Talos Foxit — versions Foxit PDF Reader 9.0.1.1049.
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- talos-cna@cisco.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-3850?
- CVE-2018-3850 is a high-severity vulnerability in Foxit Pdf Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2018-04-23.
- How severe is CVE-2018-3850?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-3850 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.