{"cve":"CVE-2026-49426","nvd":{"published":"2026-08-19T06:17:41.720","modified":"2026-09-01T20:19:55.283","status":"Analyzed","description":"When auditing a system call executed via ptrace(PT_SC_REMOTE), the kernel passed the return value of an internal setup function to AUDIT_SYSCALL_EXIT() rather than the actual result of the executed system call.  As a result, committed audit records for system calls which returned an error do not reflect the true outcome of the operation.  That is, they indicate that the operation succeeded when it in fact failed.\n\nAudit records for system calls executed via ptrace(PT_SC_REMOTE) may show an incorrect error status.  An attacker with the ability to debug a process could use this to produce misleading audit trails, potentially undermining audit-based Intrusion Detection Systems (IDS).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":3.3},"cwes":["CWE-223","CWE-224"],"references":["https://security.freebsd.org/advisories/FreeBSD-SA-26:45.audit.asc"],"products":["freebsd:freebsd"],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-49426","score":0.00138,"percentile":0.03206,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}