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VULNERABILITIES

CVE-2026-49426 Details

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

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:3.3 LOWVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://security.freebsd.org/advisories/FreeBSD-SA-26:45.audit.asc [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-223Omission of Security-relevant Information[email protected]
CWE-224Obscured Security-relevant Information by Alternate Name[email protected]

Affected Products

ProductVersions
freebsd freebsd
14.3 -
14.3 p1
14.3 p10
14.3 p11
14.3 p12

CPE

  • cpe:2.3:o:freebsd:freebsd:14.3:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p10:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p11:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p12:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p13:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p14:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p15:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:rc1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:rc2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:rc3-p1:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-49426
NVD Published Date:
Aug 19, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-49426 Details - Not Deferred