CVE-2026-19582 Red Hat CVE debrief

Who should care

System administrators and users who utilize binutils to process PE files, especially from untrusted sources, should be aware of this potential vulnerability and take necessary precautions. This includes reviewing compensating controls, monitoring for suspicious activity, and verifying vendor remediation and patches as available. Security teams should prioritize patching and vulnerability management for affected systems, and consider implementing additional security measures to detect and prevent exploitation. Operators of systems using binutils should also review their asset inventory and assess potential exposure. Vulnerability management teams should track this CVE and assess the risk to their organization. Security teams should also review relevant monitoring, detection, and logs for exposed assets that need extra review. System administrators should also consider implementing rollback/change windows for affected systems. Asset inventory and source tracking are also recommended to ensure visibility into affected systems and potential exposure. The CVE record was published on 2026-08-20T05:16:27.987Z and was last modified on 2026-08-25T23:16:58.030Z. The NVD entry is currently Awaiting Analysis. System administrators and users should also review the official CVE Program record and NVD vulnerability detail page for additional information and guidance. System administrators and users should also consider verifying vendor remediation and applying patches as available. System administrators and users should also review compensating controls for exposed systems while remediation is scheduled and verified. System administrators and users should also monitor for and track any suspicious activity related to binutils usage. System administrators and users should also verify vendor remediation and apply patches as available. System administrators and users should also consider implementing compensating controls, such as restricting access to binutils for sensitive operations. System administrators and users should also consider reviewing relevant monitoring, detection, and logs for exposed assets that need extra review. System administrators and users should also review

Technical summary

A victim who opens a crafted PE file using binutils could execute arbitrary code unknowningly via a stack buffer overflow out of bounds write. This vulnerability affects binutils version 2.46.1 and prior versions. The vulnerability has a high impact on confidentiality, integrity, and availability. Successful exploitation requires user interaction.

Defensive priority

High priority for systems using binutils to process PE files from untrusted sources.

Recommended defensive actions

• Inventory and assess systems using binutils for processing PE files from untrusted sources.
• Implement compensating controls, such as restricting access to binutils for sensitive operations.
• Monitor for and track any suspicious activity related to binutils usage.
• Verify vendor remediation and apply patches as available.

Evidence notes

Evidence is limited; primary official records indicate a potential stack buffer overflow vulnerability in binutils when processing crafted PE files. Further analysis and verification are necessary to determine the full scope of affected systems and potential impact. The CVE record was published on 2026-08-20T05:16:27.987Z and was last modified on 2026-08-25T23:16:58.030Z. The NVD entry is currently Awaiting Analysis. Defenders should verify vendor remediation and apply patches as available.

Sources and 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.