Is CVE-2025-26409 in the CISA KEV catalog?

No. CVE-2025-26409 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-26409?

CVE-2025-26409 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2025-26409?

CVE-2025-26409 has an EPSS score of 0.33% (25th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-26409?

No published fix for CVE-2025-26409 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-26409

MEDIUM

6.8

CVSS v3

NVD

Description

A serial interface can be accessed with physical access to the PCB of Wattsense Bridge devices. After connecting to the interface, access to the bootloader is possible, as well as a Linux login prompt. The bootloader access can be used to gain a root shell on the device. This issue is fixed in recent firmware versions BSP >= 6.4.1.

CWE-1191 CWE-1299

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.33%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-1191 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4231	Medium	4.6	0.6%	-	-
CVE-2022-43096	Medium	6.8	0.5%	-	Fix
CVE-2020-9285	Medium	6.8	0.5%	-	-
CVE-2025-65821	High	7.5	0.3%	-	-
CVE-2025-26408	Medium	6.1	0.3%	-	-
CVE-2024-41692	Unscored	-	0.3%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.