CVE-2021-34833
HighThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.
Published Aug 4, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-34833 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting PDF Reader (Foxit), Pdf Editor (Foxitsoftware).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 96% probability of exploitation in the next 30 days.
- Fixed versions are available, including PDF Reader <=11.0.0.49893, Pdf Editor <=10.1.4.37651, PDF Reader 11.0.0.49893.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
96%
Higher than 99.8% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. 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-14023.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PDF ReaderFoxit | >= 11.0.0.49893 | 11.0.0.49893 |
| Pdf EditorFoxitsoftware | 11.0.0.49893 | 10.1.4.37651 |
Patched Releases
PDF Reader
<=11.0.0.49893
Pdf Editor
<=10.1.4.37651
Timeline
Publicly disclosed
Aug 4, 2021
Last updated
Nov 21, 2024
Weakness Type
- CWE-416 Use After Free
References
FAQ
Common Questions.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.
Affected: PDF Reader (Foxit) versions >= 11.0.0.49893; Pdf Editor (Foxitsoftware) versions 11.0.0.49893. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including PDF Reader <=11.0.0.49893, Pdf Editor <=10.1.4.37651, PDF Reader 11.0.0.49893.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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