CVE-2025-66493 | Foxit PDF Reader AcroForm Use-After-Free Remote Code Execution Vulnerability

A use-after-free vulnerability exists in the AcroForm handling of Foxit PDF Reader and Foxit PDF Editor before 2025.2.1,14.0.1 and 13.2.1 on Windows . When opening a PDF containing specially crafted JavaScript, a pointer to memory that has already been freed may be accessed or dereferenced, potentially allowing a remote attacker to execute arbitrary code.

Published: 2025-12-19 Last update: 2025-12-23 Assigner: 14984358-7092-470d-8f34-ade47a7658a2 Source: 14984358-7092-470d-8f34-ade47a7658a2
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-66493 is rated Low Risk (36.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-66493

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-29 0.04% 0.05% +0.01%
2 2026-05-17 0.05% 0.04% -0.01%
3 2026-01-20 — 0.05% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-66493

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 14984358-7092-470d-8f34-ade47a7658a2

Weakness enumeration for CVE-2025-66493

Affected software / configurations for CVE-2025-66493

Vendor Product Version Raw CPE
foxit pdf_editor <= 13.2.1.23955 cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
foxit pdf_editor >= 14.0.0.33046, <= 14.0.1.33197 cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
foxit pdf_editor >= 2023.1.0.15510, <= 2023.3.0.23028 cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
foxit pdf_editor >= 2024.1.0.23997, <= 2024.4.1.27687 cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
foxit pdf_editor >= 2025.1.0.27937, <= 2025.2.1.33197 cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
foxit pdf_reader <= 2025.2.1.33197 cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*

References for CVE-2025-66493

cvelogic Threat Intelligence