CVE-2021-26788
HIGHOryx Embedded CycloneTCP 1.7.6-2.0.0 - Unauthenticated Denial of Service via Malicious TCP Packet
Title source: llmDescription
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.
References (1)
Core 1
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/Oryx-Embedded/CycloneTCP/commit/de5336016edbe1e90327d0ed1cba5c4e49114366?branch=de5336016edbe1e90327d0ed1cba5c4e49114366&diff=split
Scores
CVSS v3
7.5
EPSS
0.0122
EPSS Percentile
64.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-20
Status
published
Products (1)
oryx-embedded/cyclonetcp
1.7.6 - 2.0.0
Published
Mar 08, 2021
Tracked Since
Feb 18, 2026