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PatchSiren cyber security CVE debrief

CVE-2025-66769 Gonitro CVE debrief

A NULL pointer dereference vulnerability in Nitro PDF Pro for Windows v14.41.1.4 can cause a Denial of Service (DoS) via a crafted XFA packet. Defenders should assess exposure, prioritize remediation, and verify vulnerability status. The vulnerability affects Nitro PDF Pro for Windows v14.41.1.4 and may cause disruption of PDF processing workflows. Additional information on affected versions and exploitation is limited, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Vendor
Gonitro
Product
Nitro PDF Pro
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-13
Original CVE updated
2026-10-15
Advisory published
2026-04-13
Advisory updated
2026-10-15

Who should care

Defenders responsible for Nitro PDF Pro for Windows deployments should assess exposure and prioritize remediation. They should also verify vulnerability status and affected versions. Additionally, defenders should check relevant monitoring, detection, and logs for exposed assets that need extra review.

Why it matters

CVE-2025-66769 is a high-severity vulnerability in Nitro PDF Pro for Windows v14.41.1.4 that can cause a Denial of Service (DoS). Defenders should assess exposure, prioritize remediation, and verify vulnerability status.

  • Denial of Service (DoS) via crafted XFA packet
  • Potential disruption of PDF processing workflows
  • Need for vulnerability verification and remediation

Technical summary

The vulnerability is a NULL pointer dereference in Nitro PDF Pro for Windows v14.41.1.4, which can be exploited to cause a Denial of Service (DoS) via a crafted XFA packet. The vulnerability affects Nitro PDF Pro for Windows v14.41.1.4 and may cause disruption of PDF processing workflows. Defenders should review compensating controls for exposed systems while remediation is scheduled and verified.

Defensive priority

Remediation is recommended; verify affected versions and assess exposure.

Recommended defensive actions

  • Assess exposure of Nitro PDF Pro for Windows v14.41.1.4
  • Prioritize remediation of the vulnerability
  • Verify vulnerability status and affected versions

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, additional information on affected versions and exploitation is limited. Defenders should verify affected versions and assess exposure. The CVE Program record and NVD detail page provide source-provided CVE metadata and source-specific vulnerability assessment. There are also third-party advisories and product information available.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-66769 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-66769

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-66769 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-66769

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.