Foxit Reader/PhantomPDF up to 9.4 Opcode proxyDoAction out-of-bounds
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic was found in Foxit Reader and PhantomPDF up to 9.4. This vulnerability affects the function proxyDoAction of the component Opcode Handler. The manipulation results in out-of-bounds.
This vulnerability is reported as CVE-2018-20316. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is advised.
Details
A vulnerability, which was classified as critical, was found in Foxit Reader and PhantomPDF up to 9.4 (Document Reader Software). Affected is the function proxyDoAction of the component Opcode Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 01/08/2021. The advisory is shared for download at foxitsoftware.com. This vulnerability is traded as CVE-2018-20316. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 371768 (Foxit Reader and PhantomPDF Multiple Vulnerabilities).
Upgrading to version 9.5 eliminates this vulnerability.
Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.foxitsoftware.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Reader/PhantomPDF 9.5
Timeline
01/08/2021 🔍01/08/2021 🔍
05/04/2025 🔍
Sources
Vendor: foxitsoftware.comAdvisory: foxitsoftware.com
Status: Confirmed
CVE: CVE-2018-20316 (🔍)
GCVE (CVE): GCVE-0-2018-20316
GCVE (VulDB): GCVE-100-167412
Entry
Created: 01/08/2021 07:18Updated: 05/04/2025 14:32
Changes: 01/08/2021 07:18 (40), 07/30/2024 00:48 (20), 05/04/2025 14:32 (3)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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