CVE-2025-8078

highpriority · track · 1EPSS 0.014 · 73 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.45% (73rd) EPSS

CVSS 7.2 · high

Is it mine?

15 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX series firmware versions from V4.50 through V5.40, USG FLEX 50(W) series firmware versions from V4.16 through V5.40, and USG20(W)-VPN series firmware versions from V4.16 through V5.40 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on the affected device by passing a crafted string as an argument to a CLI command.

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · security@zyxel.com.twexploitability 1.2 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78US

affected products (15)

Products and version ranges known to be affected.

Zyxel Firewall ATP <ZLD V5.41all versionscert_bundDE
Zyxel Firewall USG FLEX 50(W) <ZLD V5.41all versionscert_bundDE
Zyxel Firewall USG FLEX <ZLD V5.41all versionscert_bundDE
Zyxel Firewall USG20(W)-VPN <ZLD V5.41all versionscert_bundDE
Zyxel Firewall≤ USG20(W)-VPN <ZLD V5.41cert_bundDE
Zyxel Firewall≤ ATP <ZLD V5.41cert_bundDE
Zyxel Firewall≤ USG FLEX 50(W) <ZLD V5.41cert_bundDE
Zyxel Firewall≤ USG FLEX <ZLD V5.41cert_bundDE
Zyxel ATP series firmware≤ versions from V4.32 through V5.40enisa_euvdEU
Zyxel USG FLEX 50(W) series firmware≤ versions from V4.16 through V5.40enisa_euvdEU
Zyxel USG FLEX series firmware≤ version from V4.50 through V5.40enisa_euvdEU
Zyxel USG20(W)-VPN series firmware≤ versions from V4.16 through V5.40enisa_euvdEU
zyxel zld4.16 → 5.41nvdUScpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*
zyxel zld4.32 → 5.41nvdUScpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*
zyxel zld4.50 → 5.41nvdUScpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2346Zyxel Firewall: Mehrere SchwachstellenDeutsch2025-10-20csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Zyxel Firewall ausnutzen, um beliebigen Programmcode auszuführen, vertrauliche Informationen offenzulegen und Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2025-10-21modified 2026-10-18

references (3)

External citations — patches, advisories, analysis.

scry

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