---
title: "CVE-2021-43267: An issue was discovered… | CubePath"
description: "An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality…"
language: en
source: https://cubepath.com/security/cve/CVE-2021-43267
---

# CVE-2021-43267: An issue was discovered… | CubePath

## Description

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16\. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG\_CRYPTO message type.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-43267)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.57853 (57.9% probability)

Percentile

99.1%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189…](https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0)
- [cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16](https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16)
- [FEDORA-2021-a093973910](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/)  (lists.fedoraproject.org) vendor-advisory
- [FEDORA-2021-bdd146e463](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/)  (lists.fedoraproject.org) vendor-advisory
- [security.netapp.com/advisory/ntap-20211125-0002](https://security.netapp.com/advisory/ntap-20211125-0002/)
- [\[oss-security\] 20220210 CVE-2022-0435: Remote Stack Overflow in Linux Kernel TIPC Module since 4.8 (net/tipc)](http://www.openwall.com/lists/oss-security/2022/02/10/1)  (openwall.com) mailing-list

## Timeline

1. ID reserved Nov 2, 2021
2. Record published Nov 2, 2021
3. Record last updated Aug 4, 2024

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## About CubePath

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:05 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)