CVE-2021-40326
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle...
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle hidden and incremental data in signed documents. An attacker can write to an arbitrary file, and display controlled contents, during signature verification.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle hidden and incremental data in signed documents. An attacker can write to an arbitrary file, and display controlled contents, during signature verification.
- Record
CVE-2021-40326- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
CVE List No score
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle hidden and incremental data in signed documents. An attacker can write to an arbitrary file, and display controlled contents, during signature verification.
- Record
CVE-2021-40326- Updated
- 2026-11-02
EUVDEUVD-2021-27506 No score
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle hidden and incremental data in signed documents. An attacker can write to an arbitrary file, and display controlled contents, during signature verification.
- Record
EUVD-2021-27506- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2c8p-fcx5-8r73
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle...
Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, mishandle hidden and incremental data in signed documents. An attacker can write to an arbitrary file, and display controlled contents, during signature verification.
- Record
GHSA-2c8p-fcx5-8r73- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40326 is a medium vulnerability (CVSS 5.5) in Foxit Pdf Editor, published August 29, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.