Corosync vulnerabilities
We track 3 vulnerabilities in Corosync products. 3 are rated high or critical, and none are known to be exploited. The most recent was published on April 1, 2026.
Latest Corosync vulnerabilities
- 7.5 High severity
Red Hat Enterprise Linux 10: Integer Overflow or Wraparound
A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denia
- 8.2 High severity
Red Hat Enterprise Linux 10: Incorrect Check of Function Return Value
A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-b
- 9.8 Critical severity
Corosync: Out-of-bounds Write
Corosync through 3.1.9, if encryption is disabled or the attacker knows the encryption key, has a stack-based buffer overflow in orf_token_endian_convert in exec/totemsrp.c via a large UDP packet.