CVE-2018-20309
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a...
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.
- Record
CVE-2018-20309- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-125, CWE-362, CWE-787
- Updated
- 2026-11-02
CVE List No score
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.
- Record
CVE-2018-20309- Updated
- 2026-11-02
EUVDEUVD-2018-12869 No score
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.
- Record
EUVD-2018-12869- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jj9h-68w9-rr33 No score
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a...
Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.
- Record
GHSA-jj9h-68w9-rr33- Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20309 is a high vulnerability (CVSS 8.1) in Foxitsoftware Phantompdf, published January 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 57th percentile. No source names a fixed version.