CVE-2026-57257 Foxit Software Inc. CVE debrief

Who should care

Organizations using the affected product, operators of the affected platform, vulnerability management teams, and security teams should be aware of this vulnerability and take necessary actions to mitigate the risk. They should verify and apply vendor patches or updates, conduct a thorough inventory of affected products and systems, and implement compensating controls, such as monitoring and exception tracking, if patches are not immediately available.

Technical summary

The vulnerability occurs due to a lack of boundary verification for the PRC entity index during the PRC parsing stage. This results in an out-of-bounds read of the entity array, leading to an application crash. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 6.1, with a severity rating of Medium. The CVSS vector is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.

Defensive priority

Medium priority should be given to patching or mitigating this vulnerability, as it can cause a denial of service (application crash). Organizations should verify and apply vendor patches or updates, conduct a thorough inventory of affected products and systems, and implement compensating controls, such as monitoring and exception tracking, if patches are not immediately available. Consider isolating affected systems or restricting access until patches are applied. Review relevant monitoring, detection, and logs for exposed assets that need extra review. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Check for any additional security advisories or bulletins that may provide further guidance on mitigating this vulnerability. Consider engaging with the vendor or a third-party security expert to assess the vulnerability and provide recommendations for mitigation if necessary. Ensure that incident response plans are updated to include procedures for responding to potential exploitation of this vulnerability. Provide training to security teams on the vulnerability and its potential impact, as well as the necessary steps for mitigation and response. Monitor for any changes to the CVE record or NVD entry that may provide additional information on the vulnerability or its mitigation. Review and update security policies and procedures as necessary to ensure that they are aligned with the latest information on this vulnerability. Consider conducting a risk assessment to identify potential vulnerabilities and prioritize mitigation efforts. Develop a plan for implementing compensating controls, such as monitoring and exception tracking, if patches are not immediately available. Identify and prioritize critical systems and assets that may be impacted by this vulnerability and ensure that they are properly secured. Ensure that all necessary stakeholders are informed of the vulnerability and itspotential

Recommended defensive actions

• Verify and apply vendor patches or updates
• Conduct a thorough inventory of affected products and systems
• Implement compensating controls, such as monitoring and exception tracking
• Consider isolating affected systems or restricting access

Evidence notes

The CVE record was published on 2026-07-08T09:16:33.907Z and has not been modified since then. The NVD entry is currently in the 'Received' status. Limited information is available about the affected product and vendor. Further verification is needed to confirm affected scope and vendor guidance.

Official resources