CVE-2020-8844
CVE-2020-8844 is a high-severity vulnerability in Foxitsoftware Reader with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-190.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 31% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-190
- Affected product: Foxitsoftware Reader
- Published:
- Last modified:
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.6.0.25114. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JPEG files within CovertToPDF. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9102.
Frequently asked questions
- What is CVE-2020-8844?
- This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.6.0.25114. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JPEG files within CovertToPDF. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9102.
- How severe is CVE-2020-8844?
- CVE-2020-8844 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-8844 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-8844?
- CVE-2020-8844 primarily affects Foxitsoftware Reader. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-8844?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-8844 published?
- CVE-2020-8844 was published on 2020-02-14 and last updated on 2026-06-17.
References
- https://www.foxitsoftware.com/support/security-bulletins.php
- https://www.zerodayinitiative.com/advisories/ZDI-20-200/
Affected products (2)
- cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:*
- cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*
More vulnerabilities in Foxitsoftware Reader
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- CVE-2019-20827 — Critical (CVSS 9.8): An issue was discovered in Foxit PhantomPDF Mac 3.3 and Foxit Reader for Mac before 3.3. It allows stack consumption…
- CVE-2020-13814 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 9.7.1. It has a use-after-free via a document that lacks…
- CVE-2020-13805 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 9.7.2. It has brute-force attack mishandling because the…
- CVE-2020-13804 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 9.7.2. It allows information disclosure of a hardcoded…
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Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities
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- CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
- CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
- CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
- CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…
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