How severe is CVE-2026-40455?

CVE-2026-40455 has a CVSS 4.0 base score of 8.6, rated high severity.

Is CVE-2026-40455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40455?

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-2026-40455 have an EU (EUVD) identifier?

Yes. CVE-2026-40455 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37874.

When was CVE-2026-40455 published?

CVE-2026-40455 was published on 2026-06-18 and last updated on 2026-06-22.

CVE-2026-40455

CVE-2026-40455 is a high-severity vulnerability with a CVSS 4.0 base score of 8.6. 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-89.

Key facts

Severity: High (CVSS 4.0 base score 8.6)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37874
Weakness: CWE-89
Published: 2026-06-18
Last modified: 2026-06-22

Description

An SQL Injection vulnerability exists in LMS (LAN Management System) before commit 4cb30a7 within the "tarifflist.php" module due to insufficient sanitization of the POST "tg[]" parameter. The application directly concatenates user-supplied array values into an SQL query using "implode()", allowing authenticated attackers to perform Error-Based SQL injection and extract sensitive database information.

Frequently asked questions

What is CVE-2026-40455?: An SQL Injection vulnerability exists in LMS (LAN Management System) before commit 4cb30a7 within the "tarifflist.php" module due to insufficient sanitization of the POST "tg[]" parameter. The application directly concatenates user-supplied array values into an SQL query using "implode()", allowing authenticated attackers to perform Error-Based SQL injection and extract sensitive database information.
How severe is CVE-2026-40455?: CVE-2026-40455 has a CVSS 4.0 base score of 8.6, rated high severity.
Is CVE-2026-40455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40455?: 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-2026-40455 have an EU (EUVD) identifier?: Yes. CVE-2026-40455 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37874.
When was CVE-2026-40455 published?: CVE-2026-40455 was published on 2026-06-18 and last updated on 2026-06-22.

References

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