CVE-2025-66620An unused webshell in MicroServer allows unlimited login attempts, with sudo rights on certain files and directories.
Updated under an hour ago ()
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It affects columbiaweather weather_microserver_firmware. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An unused webshell in MicroServer allows unlimited login attempts, with sudo rights on certain files and directories. 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.
- CVSS
- 7.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-553
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
columbiaweather weather_microserver_firmware columbiaweather:weather_microserver_firmware | before MS_4.1_14142 | NVD |
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-006-01.jsonthird-party-advisory
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-006-01third-party-advisory, us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.