CVE-2021-40420
published 2022-02-04CVE-2021-40420: A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.1.0.52543. A specially-crafted PDF document can…
PriorityP350high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
4.69%
90.8th percentile
A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.1.0.52543. A specially-crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially-crafted, malicious site if the browser plugin extension is enabled.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| foxit | pdf_reader | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
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Talos
Vulnerability Spotlight: Memory corruption and use-after-free vulnerabilities in Foxit PDF Reader
blogs_talos·2022-01-31·CVSS 8.8
[HIGH] Vulnerability Spotlight: Memory corruption and use-after-free vulnerabilities in Foxit PDF Reader
## Vulnerability Spotlight: Memory corruption and use-after-free vulnerabilities in Foxit PDF Reader
Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw.
Cisco Talos recently discovered a memory corruption and use-after-free vulnerability in the Foxit PDF Reader.
Foxit PDF Reader is one of the most popular PDF document readers currently available. As a complete and feature-rich PDF reader, it supports JavaScript for interactive documents and dynamic forms. These vulnerabilities could be triggered if an attacker tricks a user into opening a specially crafted, malicious PDF file, or open the file in a browser that has a PDF reader plugin installed.
TALOS-2021-1429 (CVE-2021-40420) exists in the JavaScript engine of Foxit PDF Reader and could trigger th
Talos
Vulnerability Spotlight: Memory corruption and use-after-free vulnerabilities in Foxit PDF Reader
blogs_talos·2022-01-31·CVSS 8.8
[HIGH] Vulnerability Spotlight: Memory corruption and use-after-free vulnerabilities in Foxit PDF Reader
Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw.
Cisco Talos recently discovered a memory corruption and use-after-free vulnerability in the Foxit PDF Reader.
Foxit PDF Reader is one of the most popular PDF document readers currently available. As a complete and feature-rich PDF reader, it supports JavaScript for interactive documents and dynamic forms. These vulnerabilities could be triggered if an attacker tricks a user into opening a specially crafted, malicious PDF file, or open the file in a browser that has a PDF reader plugin installed.
TALOS-2021-1429 (CVE-2021-40420) exists in the JavaScript engine of Foxit PDF Reader and could trigger the reuse of previously freed memory, which can lead to arbitrary code execution. TALOS-2022-1439 (CVE-2
2022-02-04
Published