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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-49426 Detail

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. Audit 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).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://security.freebsd.org/advisories/FreeBSD-SA-26:45.audit.asc FreeBSD

Weakness Enumeration

CWE-ID CWE Name Source
CWE-223 Omission of Security-relevant Information FreeBSD  
CWE-224 Obscured Security-relevant Information by Alternate Name FreeBSD  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-49426
NVD Published Date:
08/19/2026
NVD Last Modified:
08/19/2026
Source:
FreeBSD