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CVE-2026-16742— systemd-homed: local privilege escalation via missing home-record signature verification on the authenticate path

Quick assessment

Affected
systemd systemd-homed
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

systemd project systemd是systemd project组织开源的一款一套系统和服务管理器。 systemd project systemd 245版本至262版本之前版本存在安全漏洞，该漏洞源于向本地、已登录的homed-managed用户添加任意系统组，可能导致本地权限提升。

CVSS 6.7 · Medium EPSS 0.06% · P0

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
systemd systemd-homed 245< 262, 261.2, 260.4, 259.8, 258.10 affected
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I. Basic Information for CVE-2026-16742

Vulnerability Information
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Vulnerability Title
systemd-homed: local privilege escalation via missing home-record signature verification on the authenticate path
Source: CVE Program / CVE List V5
Vulnerability Description
systemd-homed contains a local privilege escalation bug via arbitrary system group addition to a local, logged in, homed-managed user
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
systemd project systemd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
systemd project systemd是systemd project组织开源的一款一套系统和服务管理器。 systemd project systemd 245版本至262版本之前版本存在安全漏洞，该漏洞源于向本地、已登录的homed-managed用户添加任意系统组，可能导致本地权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
systemd systemd-homed 245 ~ 262, 261.2, 260.4, 259.8, 258.10 -

II. Public POCs for CVE-2026-16742

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III. Intelligence Information for CVE-2026-16742

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Vendor Advisories for CVE-2026-16742 (1)

Same Patch Batch · systemd · 2026-08-10 · 3 CVEs total

CVE-2026-15059 5.5 MEDIUM systemd-oomd: unprivileged users can terminate arbitrary processes
CVE-2026-15060 4.7 MEDIUM systemd-machined: unprivileged users can terminate arbitrary processes

IV. Related Vulnerabilities

Same vendor: systemd

V. Comments for CVE-2026-16742

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