How severe is CVE-2020-1963?

CVE-2020-1963 has a CVSS 3.x base score of 9.1, 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 none.

Is CVE-2020-1963 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1963?

CVE-2020-1963 affects Apache Ignite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1963?

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-2020-1963 published?

CVE-2020-1963 was published on 2020-06-03 and last updated on 2026-06-17.

CVE-2020-1963

CVE-2020-1963 is a critical-severity vulnerability in Apache Ignite with a CVSS 3.x base score of 9.1. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Apache Ignite
Published: 2020-06-03
Last modified: 2026-06-17

Description

Apache Ignite uses H2 database to build SQL distributed execution engine. H2 provides SQL functions which could be used by attacker to access to a filesystem.

Frequently asked questions

What is CVE-2020-1963?: Apache Ignite uses H2 database to build SQL distributed execution engine. H2 provides SQL functions which could be used by attacker to access to a filesystem.
How severe is CVE-2020-1963?: CVE-2020-1963 has a CVSS 3.x base score of 9.1, 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 none.
Is CVE-2020-1963 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1963?: CVE-2020-1963 affects Apache Ignite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1963?: 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-2020-1963 published?: CVE-2020-1963 was published on 2020-06-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:ignite:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Ignite

CVE-2018-8018 — Critical (CVSS 9.8): In Apache Ignite before 2.4.8 and 2.5.x before 2.5.3, the serialization mechanism does not have a list of classes…
CVE-2018-1273 — Critical (CVSS 9.8): Spring Data Commons, versions prior to 1.13 to 1.13.10, 2.0 to 2.0.5, and older unsupported versions, contain a…
CVE-2018-1295 — Critical (CVSS 9.8): In Apache Ignite 2.3 or earlier, the serialization mechanism does not have a list of classes allowed for…
CVE-2024-52577 — Critical (CVSS 9.0): In Apache Ignite versions from 2.6.0 and before 2.17.0, configured Class Serialization Filters are ignored for some…
CVE-2017-7686 — High (CVSS 7.5): Apache Ignite 1.0.0-RC3 to 2.0 uses an update notifier component to update the users about new project releases that…
CVE-2025-48977 — Medium (CVSS 6.5): Relative Path Traversal vulnerability in Apache Ignite REST API. Authenticated REST API users can read any file on the…

All CVEs affecting Apache Ignite →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…
CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.

Browse all CWE-862 (Missing Authorization) vulnerabilities →