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VulnerabilityPublished Updated

CVE-2026-49426: FreeBSD · Omission of Security-relevant Information

Affects FreeBSDSource GCVE Database

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Not known to be exploited · CVSS 3.3 Low.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 3.1 base score
3.3Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.13.3
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Freebsdfreebsd/freebsdpkg:deb/freebsd/freebsdOther threatsAffected
  • 14.3-RELEASE – 15.1-RELEASE
4 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, restrict debugging privileges to trusted users to reduce the risk of exploitation.

Description

CVE-2026-49426 is a vulnerability in FreeBSD where audit records for system calls executed via ptrace(PT_SC_REMOTE) may incorrectly indicate success even when the system call failed. This occurs because the kernel logs the return value of an internal setup function instead of the actual system call result, leading to misleading audit trails. This flaw could allow an attacker with debugging capabilities to produce false audit records, potentially undermining audit-based intrusion detection systems.

References

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