How severe is CVE-2025-1732?

CVE-2025-1732 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-1732 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-1732?

CVE-2025-1732 affects Zyxel Uos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1732?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-1732 have an EU (EUVD) identifier?

Yes. CVE-2025-1732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12335.

When was CVE-2025-1732 published?

CVE-2025-1732 was published on 2025-04-22 and last updated on 2026-06-17.

CVE-2025-1732

CVE-2025-1732 is a medium-severity vulnerability in Zyxel Uos with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12335
Weakness: CWE-269
Affected product: Zyxel Uos
Published: 2025-04-22
Last modified: 2026-06-17

Description

An improper privilege management vulnerability in the recovery function of the Zyxel USG FLEX H series uOS firmware version V1.31 and earlier could allow an authenticated local attacker with administrator privileges to upload a crafted configuration file and escalate privileges on a vulnerable device.

Frequently asked questions

What is CVE-2025-1732?: An improper privilege management vulnerability in the recovery function of the Zyxel USG FLEX H series uOS firmware version V1.31 and earlier could allow an authenticated local attacker with administrator privileges to upload a crafted configuration file and escalate privileges on a vulnerable device.
How severe is CVE-2025-1732?: CVE-2025-1732 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-1732 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-1732?: CVE-2025-1732 affects Zyxel Uos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1732?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-1732 have an EU (EUVD) identifier?: Yes. CVE-2025-1732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12335.
When was CVE-2025-1732 published?: CVE-2025-1732 was published on 2025-04-22 and last updated on 2026-06-17.

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-incorrect-permission-assignment-and-improper-privilege-management-vulnerabilities-in-usg-flex-h-series-firewalls-04-22-2025

Affected products (1)

cpe:2.3:o:zyxel:uos:1.31:*:*:*:*:*:*:*

More vulnerabilities in Zyxel Uos

CVE-2025-1731 — High (CVSS 7.8): An incorrect permission assignment vulnerability in the PostgreSQL commands of the Zyxel USG FLEX H series uOS firmware…
CVE-2023-6398 — High (CVSS 7.2): A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions…
CVE-2023-6399 — Medium (CVSS 5.7): A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series…
CVE-2024-9677 — Medium (CVSS 5.5): The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version…

All CVEs affecting Zyxel Uos →

Other CWE-269 (Improper Privilege Management) vulnerabilities

CVE-2026-31852 — Critical (CVSS 10.0): Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios is…
CVE-2025-20282 — Critical (CVSS 10.0): A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-0505 — Critical (CVSS 10.0): On Arista CloudVision systems (virtual or physical on-premise deployments), Zero Touch Provisioning can be used to gain…
CVE-2023-48418 — Critical (CVSS 10.0): In checkDebuggingDisallowed of DeviceVersionFragment.java, there is a possible way to access adb before SUW…
CVE-2023-48419 — Critical (CVSS 10.0): An attacker in the wifi vicinity of a target Google Home can spy on the victim, resulting in Elevation of Privilege
CVE-2023-31273 — Critical (CVSS 10.0): Protection mechanism failure in some Intel DCM software before version 5.2 may allow an unauthenticated user to…

Browse all CWE-269 (Improper Privilege Management) vulnerabilities →