CVE-2023-6016
CVE-2023-6016 is a critical-severity vulnerability in H2o with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 31% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: H2o
- Published:
- Last modified:
Description
An attacker is able to gain remote code execution on a server hosting the H2O dashboard through it's POJO model import feature.
Frequently asked questions
- What is CVE-2023-6016?
- An attacker is able to gain remote code execution on a server hosting the H2O dashboard through it's POJO model import feature.
- How severe is CVE-2023-6016?
- CVE-2023-6016 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-2023-6016 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-6016?
- CVE-2023-6016 affects H2o. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-6016?
- 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-2023-6016 published?
- CVE-2023-6016 was published on 2023-11-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:h2o:h2o:-:*:*:*:*:*:*:*
More vulnerabilities in H2o
- CVE-2026-3960 — Critical (CVSS 9.8): A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in…
- CVE-2025-6544 — Critical (CVSS 9.8): A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system…
- CVE-2024-10553 — Critical (CVSS 9.8): A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute…
- CVE-2024-45758 — Critical (CVSS 9.1): H2O.ai H2O through 3.46.0.4 allows attackers to arbitrarily set the JDBC URL, leading to deserialization attacks, file…
- CVE-2024-8616 — High (CVSS 8.2): In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target…
- CVE-2023-6569 — High (CVSS 8.2): External Control of File Name or Path in h2oai/h2o-3
Other CWE-94 (Code Injection) vulnerabilities
- CVE-2026-76605 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Remote code execution via image element in Fabrik < 4.7.3 - ???.
- CVE-2026-76604 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Unauthenticated remote code execution via PHP form element in Fabrik < 4.7.3 - The…
- CVE-2026-67364 — Critical (CVSS 10.0): Joomla Extension - balbooa.com - Pre-auth PHP Code Injection in Balbooa Forms < 2.4.3.2 - CWE-94 / CWE-95 | CVSS 3.1:…
- CVE-2026-73343 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in WP Compress < 7.20.01 versions.
- CVE-2026-74253 — Critical (CVSS 10.0): Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer < 14.0.0…
- CVE-2026-73678 — Critical (CVSS 10.0): MindsDB Minds Platform version 26.1.0 and earlier contains an unauthenticated remote code execution vulnerability that…