Home/CVE/A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a
CVE

CVE-2021-43045

A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a

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.

HIGH · CVSS 7.5 EPSS 0.0037
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

1
apache avro< 1.11.0
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
NuGet Apache.Avro HIGH fixed in 1.11.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Jan 2022 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
oracle-cpuoracle-cpu-Oracle-Business-Intelligence-Enterprise-Edition-2025--CVE-2021-43045
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2022/01/06/8Mailing ListThird Party Advisory
https://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfdMailing ListVendor Advisory
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