P4Verified

CVE-2025-66620: weather microserver firmware before MS_4.1_14142 (exclusive); +1 more affected products

CVE-2025-66620. CVSS 3.1 base score 7.2 (HIGH, NVD). EPSS 0.00464 (percentile 0.38017), scored 2026-10-05.

Affected technology

weather microserver firmware · before MS_4.1_14142 (exclusive)
columbiaweather

MicroServer · 0 to before MS_4.1_14142
Columbia Weather Systems

Component: Not specified by the source
File: system

Attack conditions (Vendor/CNA, CVSS 4.0): Adjacent network · Low privileges required · No user interaction required

What an attacker can do

An attacker with admin access to MicroServer can gain limited shell access, enabling persistence through reverse shells, and the ability to modify or remove data stored in the file system. Vendor/CNA’s CVSS 4.0 assessment (base score 8.6/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-07 11:52:04.870075+00:00

CWE: CWE-553
CCR priority: 28.9 /100 (P4)
CVSS 3.1: 7.2 /10 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.00464 · percentile 0.38111 · 2026-10-06
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-07 11:53:15.413517+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-07 11:49:32.540646+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-66620.html