CVE-2021-31456
Last modified
CVE-2021-31456 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. EPSS estimates a 2.76% chance of exploitation in the next 30 days.
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. 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 handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13102.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Foxitsoftware | Phantompdf | <= 9.7.5.29616 |
| Foxitsoftware | Phantompdf | >= 10.0.0.0, <= 10.1.37598 |
| Foxitsoftware | Reader | <= 10.1.3.37598 |
References
- https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-545/Third Party Advisory, VDB Entry
- https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-545/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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