How severe is CVE-2020-9406?

CVE-2020-9406 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-9406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9406?

CVE-2020-9406 affects Iblsoft Online Weather. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9406?

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

When was CVE-2020-9406 published?

CVE-2020-9406 was published on 2020-02-26 and last updated on 2026-06-17.

CVE-2020-9406

CVE-2020-9406 is a critical-severity vulnerability in Iblsoft Online Weather with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Iblsoft Online Weather
Published: 2020-02-26
Last modified: 2026-06-17

Description

IBL Online Weather before 4.3.5a allows unauthenticated eval injection via the queryBCP method of the Auxiliary Service.

Frequently asked questions

What is CVE-2020-9406?: IBL Online Weather before 4.3.5a allows unauthenticated eval injection via the queryBCP method of the Auxiliary Service.
How severe is CVE-2020-9406?: CVE-2020-9406 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-9406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9406?: CVE-2020-9406 affects Iblsoft Online Weather. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-9406 published?: CVE-2020-9406 was published on 2020-02-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iblsoft:online_weather:*:*:*:*:*:*:*:*

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