CVE-2025-2858: Privilege escalation vulnerability in the saTECH BCU firmware version 2.1.3

Routine

HIGH 8.8MITIGATE

CVE-2025-2858 is a high-severity flaw (CVSS 8.8) affecting satech bcu firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Privilege escalation vulnerability in the saTECH BCU firmware version 2.1.3. An attacker with access to the CLI of the device could make use of the nice command to bypass all restrictions and elevate privileges as a superuser.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-269
Published	2025-03-28
Last modified	2026-06-17

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: arteche

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-28 14:15 UTCPublished CVE record published
2026-06-17 09:07 UTCUpdated Record last modified

arteche satech bcu firmware MITIGATE

Affected: 2.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-2858?

satech bcu firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-2858 being exploited?

CVE-2025-2858 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-2858 affect?

CVE-2025-2858 affects satech bcu firmware. Severity is high (CVSS 8.8). Privilege escalation vulnerability in the saTECH BCU firmware version 2.1.3. An attacker with access to the CLI of the device could make use of the nice command to bypass all restrictions and elevate privileges as a superuser.

How urgent is CVE-2025-2858?

Priority 36/100. High severity

Related CVEs

CVE-2025-2865 MEDIUM 6.1 MITIGATE SaTECH BCU, in its firmware version 2.1.3, could allow XSS attacks and other malicious resources to be stored
CVE-2025-2864 MEDIUM 6.1 MITIGATE SaTECH BCU in its firmware version 2.1.3 allows an attacker to inject malicious code into the legitimate websi
CVE-2025-2863 HIGH 7.8 MITIGATE Cross-site request forgery (CSRF) vulnerability in the web application of saTECH BCU firmware version 2.1.3, w
CVE-2025-2862 HIGH 7.5 MITIGATE SaTECH BCU, in its firmware version 2.1.3, performs weak password encryption
CVE-2025-2861 HIGH 7.5 MITIGATE SaTECH BCU in its firmware version 2.1.3 uses the HTTP protocol

References

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