Vulnerability Details : CVE-2021-38563
An issue was discovered in Foxit PDF Reader before 11.0.1 and PDF Editor before 11.0.1. It mishandles situations in which an array size (derived from a /Size entry) is smaller than the maximum indirect object number, and thus there is an attempted incorrect array access (leading to a NULL pointer dereference, or out-of-bounds read or write).
Vulnerability category: Memory Corruption
Products affected by CVE-2021-38563
- cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
- cpe:2.3:a:foxitsoftware:pdf_editor:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38563
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38563
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-38563
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-38563
-
https://www.foxitsoftware.com/support/security-bulletins.php
Security Bulletins | Foxit SoftwareVendor Advisory
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