CVE-2021-26788: Input Validation
First published: Mon Mar 08 2021(Updated: )
Oryx Embedded CycloneTCP 1.7.6 to 2.0.0, fixed in 2.0.2, is affected by incorrect input validation, which may cause a denial of service (DoS). To exploit the vulnerability, an attacker needs to have TCP connectivity to the target system. Receiving a maliciously crafted TCP packet from an unauthenticated endpoint is sufficient to trigger the bug.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oryx-embedded Cyclonetcp | >=1.7.6<=2.0.0 |
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Frequently Asked Questions
What is CVE-2021-26788?
CVE-2021-26788 is a vulnerability in Oryx Embedded CycloneTCP versions 1.7.6 to 2.0.0, which is fixed in version 2.0.2.
How does CVE-2021-26788 affect Oryx Embedded CycloneTCP?
CVE-2021-26788 affects Oryx Embedded CycloneTCP by causing incorrect input validation, leading to a potential denial of service (DoS) attack.
How can an attacker exploit CVE-2021-26788?
To exploit CVE-2021-26788, an attacker needs TCP connectivity to the target system and can send a maliciously crafted TCP packet.
What is the severity of CVE-2021-26788?
The severity of CVE-2021-26788 is high, with a severity score of 7.5.
How can I fix CVE-2021-26788?
To fix CVE-2021-26788, upgrade Oryx Embedded CycloneTCP to version 2.0.2 or later.
- collector/nvd-index
- agent/weakness
- agent/severity
- agent/references
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/first-publish-date
- agent/last-modified-date
- agent/remedy
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- vendor/oryx-embedded
- canonical/oryx-embedded cyclonetcp
- version/oryx-embedded cyclonetcp/1.7.6
- version/oryx-embedded cyclonetcp/2.0.0