CVE-2026-18367

Local code execution as root

Published Aug 6, 2026 · Updated Aug 6, 2026

Privilege escalation in Sophos Endpoint before 2026.1.1 and Sophos Home before 10.11.6 allows local users to execute code as root. Sophos has not published the affected component or the authorization operation that accepts attacker-controlled local input. A local account with no elevated privileges or user interaction is sufficient, and successful exploitation grants root-level code execution on the Mac.

CVSS severity9.3
Critical
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Sophos Endpoint before 2026.1.1 and Sophos Home before 10.11.6 allows local users to execute code as root. Sophos has not published the affected component or the authorization operation that accepts attacker-controlled local input. A local account with no elevated privileges or user interaction is sufficient, and successful exploitation grants root-level code execution on the Mac.

The record

CVE
CVE-2026-18367
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Sophos
Product
Sophos Home
Classifications
CWE-285, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <10.11.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Sophos · Sophos Homeversion=0 <10.11.6
Sophos · Sophos Endpointversion=0 <2026.1.1

Published CVSS scores

9.3Sophos LimitedCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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