CVE-2025-54983

mediumpriority · track · 0EPSS 0.001 · 3 %ileDEEU
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.13% (3rd) EPSS
CVSS 5.2 · medium
Is it mine?
6 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.

01

cvss

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

5.2
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.2mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:Nsecondary · ENISA EU
v3.15.2mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:Nsecondary · cve@zscaler.comexploitability 2 · impact 2.7
v3.14.8mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

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

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (6)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2025-2578ZScaler Client Connector: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2025-11-11csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle in ZScaler Client Connector ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2025-11-12modified 2026-10-18
08

references (3)

External citations — patches, advisories, analysis.

scry

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