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CVE-2025-8762

INSTAR 2K+/4K UART improper physical access control

MEDIUM
6.8
CVSS Score
Published: August 13, 2025 at 06:14 AM UTC
Updated: June 17, 2026 at 10:07 AM UTC
2 products affected across 1 vendor2K Plus4K

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A vulnerability was found in INSTAR 2K+ and 4K 3.11.1 Build 1124. This issue affects some unknown processing of the component UART Interface. The manipulation leads to improper physical access control. It is possible to launch the attack on the physical device. The exploit has been disclosed to the public and may be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

RelatedExploit
Source: [email protected]
https://modzero.com/static/MZ-25-03_modzero_INSTAR.pdf
SignaturePermissions Required
Source: [email protected]
https://vuldb.com/?ctiid.319865
VDB Entry
Source: [email protected]
https://vuldb.com/?id.319865

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-284CWE-1263

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