CVE-2021-43045

7.5 highEPSS 3.1%

High (7.5) in apache avro. EPSS 3.1% chance of exploitation in the next 30 days.

A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a denial-of-service attack. This issue affects .NET applications using Apache Avro version 1.10.2 and prior versions. Users should update to version 1.11.0 which addresses this issue.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2022-01-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apache:avro

References

http://www.openwall.com/lists/oss-security/2022/01/06/8
https://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfd
http://www.openwall.com/lists/oss-security/2022/01/06/8
https://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfd

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