Use After Free in Gonitro Nitro Pdf Pro
CVE-2025-69627
Nitro PDF Pro for Windows 14.41.1.4 contains a heap use-after-free vulnerability in the implementation of the JavaScript method this.mailDoc(). During execution, an internal XID object is allocated and then freed prematurely, after which the freed pointer is still passed into UI and logging helper functions. Because the freed memory region may contain unpredictable heap data or remnants of attacker-controlled JavaScript strings, downstream routines such as wcscmp() may process invalid or stale pointers. This can result in access violations and non-deterministic crashes.
Vulnerability class: Use-After-Free
EPSS: 0.002 (10.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Gonitro Nitro_pdf_pro — versions 14.41.1.4
- Microsoft Windows
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-69627?
- CVE-2025-69627 is a high-severity vulnerability in Gonitro Nitro Pdf Pro, classified under Use After Free. CVSS score: 8.4/10. Published 2026-04-13.
- How severe is CVE-2025-69627?
- High severity. CVSS v3 base score is 8.4 out of 10.