A local privilege escalation vulnerability caused by incorrect permission assignment in some directories of the Zyxel AP Configurator (ZAC)…

published 2022-04-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15678

cvss: 7.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

A local privilege escalation vulnerability caused by incorrect permission assignment in some directories of the Zyxel AP Configurator (ZAC) version 1.1.4, which could allow an attacker to execute arbitrary code as a local administrator.

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

Zyxel Zyxel AP Configurator (ZAC)

Classification

Weakness

CWE-269 Improper Privilege Management
CWE-732 Incorrect Permission Assignment for Critical Resource

References

zyxel.com /support/Zyxel-security-advisory-for-local-privilege-escalation-vulnerability-of-AP-Configurator.shtml
vendor-advisory

Sources

CVE List CVE-2022-0556
NVD CVE-2022-0556

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Summary