CVE-2026-31503

A flaw was found in the Linux kernel's User Datagram Protocol UDP implementation. When a significant number of UDP sockets are bound to specific local addresses on the same port, the kernel's conflict detection mechanism can fail. This allows a local attacker to bind to a wildcard address on a po...

UBUNTU-CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-31503

CVE-2026-31503 concerns a Linux kernel UDP hash2-based wildcard-bind conflict check that can miss an in-use port when many sockets bind to the same port. The issue arises because UDP uses two hashes (hash and hash2) for collision detection and switches to hash2 only when hslot->count > 10, ...

CVE-2026-33602 Off-by-one access when processing crafted UDP responses

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-5358

No description is available for this CVE. Mitigation To mitigate this issue, ensure that Network Information Service NIS is not in use on affected systems. NIS is an obsolete service and its use is deprecated in modern Red Hat Enterprise Linux environments. If NIS is not required, disable any...

PT-2026-34444

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A rogue backend can send a crafted UDP response with a query ID off by one relative to the maximum configured value. This triggers an out-of-bounds write, which ...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013286)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013286 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. syzkaller reported 0 memory leak...

CVE-2026-5358

Removed by vendor...

SUSE-SU-2026:1394-1 Security update for corosync

This update for corosync fixes the following issues: - CVE-2026-35091: Denial of Service and information disclosure via crafted UDP packet bsc1261299. - CVE-2026-35092: Denial of Service via integer overflow in join message validation bsc1261300...

Amazon Linux 2023 : corosync, corosync-vqsim, corosynclib (ALAS2023-2026-1560)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1560 advisory. 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 craft...

HTTP Fetch, Windows Upload/Execute, Reverse UDP Stager with UUID Support

Fetch and execute an x86 payload from an HTTP server. Uploads an executable and runs it staged. Connect back to the attacker with UUID Support Module Options msf use payload/cmd/windows/http/x86/upexec/reverseudp msf payloadreverseudp show actions ...actions... msf payloadreverseudp set ACTION ms...

EUVD-2026-17881

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 denial of service. This vulnerability...

CVE-2026-35091

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-bounds read, causing a denial of service...

DEBIAN-CVE-2026-35091

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-bounds read, causing a denial of service...

DEBIAN-CVE-2026-35092

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 denial of service. This vulnerability...

UBUNTU-CVE-2026-35091

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-bounds read, causing a denial of service...

CVE-2026-35092

Corosync: A vulnerability in the join message sanity validation causes an integer overflow when using totemudp/totemudpu mode. Remote, unauthenticated attackers can send crafted UDP packets to crash the service, resulting in an availability impact (DoS). No remediation details are provided in the...

CVE-2026-35092

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 denial of service. This vulnerability...