Out-of-bounds read in OpENer - CVE-2021-21777
Published: June 21, 2021
Vulnerability identifier: #VU54253
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21777
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the Ethernet/IP UDP handler functionality. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
Affected software
OpENer
How to mitigate CVE-2021-21777
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.