How severe is CVE-2025-26856?

CVE-2025-26856 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26856?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-26856 have an EU (EUVD) identifier?

Yes. CVE-2025-26856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4626.

When was CVE-2025-26856 published?

CVE-2025-26856 was published on 2025-02-20 and last updated on 2026-06-17.

CVE-2025-26856

CVE-2025-26856 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4626
Weakness: CWE-78
Published: 2025-02-20
Last modified: 2026-06-17

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in UD-LT2 firmware Ver.1.00.008_SE and earlier. If an attacker logs in to the affected product with an administrative account and manipulates requests for a certain screen operation, an arbitrary OS command may be executed. This vulnerability was reported on a different screen operation from CVE-2025-20617.

Frequently asked questions

What is CVE-2025-26856?: Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in UD-LT2 firmware Ver.1.00.008_SE and earlier. If an attacker logs in to the affected product with an administrative account and manipulates requests for a certain screen operation, an arbitrary OS command may be executed. This vulnerability was reported on a different screen operation from CVE-2025-20617.
How severe is CVE-2025-26856?: CVE-2025-26856 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-26856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-26856 have an EU (EUVD) identifier?: Yes. CVE-2025-26856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4626.
When was CVE-2025-26856 published?: CVE-2025-26856 was published on 2025-02-20 and last updated on 2026-06-17.

References

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