How severe is CVE-2025-33042?

CVE-2025-33042 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-33042 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-33042?

CVE-2025-33042 primarily affects Apache Avro. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-33042?

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-2025-33042 have an EU (EUVD) identifier?

Yes. CVE-2025-33042 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206910.

When was CVE-2025-33042 published?

CVE-2025-33042 was published on 2026-02-13 and last updated on 2026-06-17.

CVE-2025-33042

CVE-2025-33042 is a high-severity vulnerability in Apache Avro with a CVSS 3.x base score of 7.3. 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: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206910
Weakness: CWE-94
Affected product: Apache Avro
Published: 2026-02-13
Last modified: 2026-06-17

Description

Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrusted Avro schemas. This issue affects Apache Avro Java SDK: all versions through 1.11.4 and version 1.12.0. Users are recommended to upgrade to version 1.12.1 or 1.11.5, which fix the issue.

Frequently asked questions

What is CVE-2025-33042?: Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrusted Avro schemas. This issue affects Apache Avro Java SDK: all versions through 1.11.4 and version 1.12.0. Users are recommended to upgrade to version 1.12.1 or 1.11.5, which fix the issue.
How severe is CVE-2025-33042?: CVE-2025-33042 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-33042 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-33042?: CVE-2025-33042 primarily affects Apache Avro. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-33042?: 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-2025-33042 have an EU (EUVD) identifier?: Yes. CVE-2025-33042 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206910.
When was CVE-2025-33042 published?: CVE-2025-33042 was published on 2026-02-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:apache:avro:*:*:*:*:*:-:*:*
cpe:2.3:a:apache:avro:1.12.0:-:*:*:*:-:*:*
cpe:2.3:a:apache:avro:1.12.0:rc0:*:*:*:-:*:*
cpe:2.3:a:apache:avro:1.12.0:rc1:*:*:*:-:*:*

More vulnerabilities in Apache Avro

CVE-2023-39410 — High (CVSS 7.5): When deserializing untrusted or corrupted data, it is possible for a reader to consume memory beyond the allowed…
CVE-2022-36125 — High (CVSS 7.5): It is possible to crash (panic) an application by providing a corrupted data to be read. This issue affects Rust…
CVE-2022-36124 — High (CVSS 7.5): It is possible for a Reader to consume memory beyond the allowed constraints and thus lead to out of memory on the…
CVE-2022-35724 — High (CVSS 7.5): It is possible to provide data to be read that leads the reader to loop in cycles endlessly, consuming CPU. This issue…
CVE-2021-43045 — High (CVSS 7.5): A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing…
CVE-2024-47561 — High (CVSS 7.3): Schema parsing in the Java SDK of Apache Avro 1.11.3 and previous versions allows bad actors to execute arbitrary…

All CVEs affecting Apache Avro →

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…

Browse all CWE-94 (Code Injection) vulnerabilities →