PatchSiren cyber security CVE debrief
CVE-2026-57258 Foxit Software Inc. CVE debrief
CVE-2026-57258 is a MEDIUM severity vulnerability in the PRC file header parsing logic, which leads to out-of-bounds reads and application crashes with a CVSS score of 6.1. The vulnerability affects Foxit software, and users should review their installations for potential exposure. The CVE record and NVD entry provide more information about the vulnerability. The debrief is based on the supplied source corpus and may not be comprehensive.
- Vendor
- Foxit Software Inc.
- Product
- Foxit PDF Editor
- CVSS
- MEDIUM 6.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-08
- Original CVE updated
- 2026-07-09
- Advisory published
- 2026-07-08
- Advisory updated
- 2026-07-09
Who should care
Users of Foxit software, particularly those responsible for vulnerability management, security teams, and operators, should review their installations for potential exposure to this vulnerability. They should also verify the affected scope and severity with the vendor and review compensating controls for exposed systems.
Technical summary
The PRC file header parsing logic trusts the constructed file structure description information, assumes that the underlying array contains elements and reads them, leading to out-of-bounds reads and application crashes. This vulnerability has a CVSS score of 6.1 and a severity of MEDIUM. The affected product is Foxit software, and users should review their installations for potential exposure.
Defensive priority
Apply patches or updates from the vendor as soon as available. Review software configurations and limit exposure to untrusted PRC files. Verify the affected scope and severity with the vendor and review compensating controls for exposed systems.
Recommended defensive actions
- Apply patches or updates from Foxit
- Review software configurations
- Limit exposure to untrusted PRC files
- Review compensating controls for exposed systems
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
Evidence notes
The CVE record was published on 2026-07-08T09:16:34.030Z and has not been modified since then. The NVD entry is currently 6.1 MEDIUM. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The PRC file header parsing logic vulnerability leads to out-of-bounds reads and application crashes. Users should review the official CVE record and NVD entry for more information.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-57258 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-57258
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-57258 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-57258
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://www.foxit.com/support/security-bulletins.html
14984358-7092-470d-8f34-ade47a7658a2
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.