Out-of-bounds Read in Foxit
CVE-2018-3956
An exploitable out-of-bounds read vulnerability exists in the handling of certain XFA element attributes of Foxit Software's PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger an out-of-bounds read, which can disclose sensitive memory content and aid in exploitation when coupled with another vulnerability. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.460 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.460 · newest: 0.460 · change: 0.000
Affected products
- Foxit — versions Foxit Software PDF Reader 9.1.0.5096.
- Foxitsoftware Phantompdf
- Foxitsoftware Reader
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.talosintelligence.com/vulnerability_reports/TALOS-2018-0626 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-3956?
- CVE-2018-3956 is a high-severity vulnerability in Foxit, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2019-01-30.
- How severe is CVE-2018-3956?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2018-3956 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.