CVE-2026-55490

OpenWrt OpenWrt (embedded Linux) mediateces: CVE-2026-55490 affects the Emergency Access Daemon’s handle_send_a() where an integer underflow can lead to a pre-auth DoS by an unauthenticated attacker on the local network via a crafted UDP packet. The underflow causes a bounds-check misstep, then a...

curl: libcurl: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability

A flaw was found in curl and libcurl. A malicious HTTP/3 server can exploit an issue in the QUIC UDP receive function by continuously streaming empty UDP datagrams. This can lead to a remote denial of service DoS against a curl or libcurl client, as the helper function discards zero-length UDP...

PT-2026-55282

Name of the Vulnerable Software and Affected Versions Eclipse Wakaama versions prior to snapshot/2026-05-26 Description An unbounded memory allocation issue exists in the CoAP Block1 handler within the coap/block.c file. Unauthenticated remote attackers can cause a denial of service by sending a...

PT-2026-54076

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 150.0.7871.47 Description A use after free issue exists in the QUIC protocol implementation. This allows a remote attacker to potentially exploit heap corruption by sending malicious network traffic. Use after...

GHSA-VGRC-HQ28-P3XP Hysteria has an authenticated UDP ACL bypass that enables localhost and private-network UDP SSRF

Summary Hysteria's UDP relay treats the destination address as packet-scoped, but ACL and outbound policy are applied only once when a new UDP session is created. After an authenticated client opens a UDP session using an allowed first destination, later packets in the same Session ID can be sent...

CVE-2026-48497 Envoy: Abnormal process termination in DNS UDP filter

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long...

CVE-2026-53070

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP over User Datagram Protocol UDP implementation. An issue with managing the transmission context across different processing units could lead to incorrect recursion level detection. This can cause network packets to b...

CVE-2026-53184

In the Linux kernel, the following vulnerability has been resolved: udp: clear skb-dev before running a sockmap verdict On the UDP receive path skb-dev is repurposed as devscratch the truesize/state cache set by udpsetdevscratch, through the union struct netdevice dev; unsigned long devscratch; i...

EUVD-2026-39326

In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...

CVE-2026-53184

The CVE-2026-53184 issue affects the Linux kernel UDP sockmap path. On UDP receive, skb->dev is repurposed as dev_scratch; when a SK_SKB verdict program uses BPF socket-lookup helpers (bpf_sk_lookup_tcp/udp, bpf_skc_lookup_tcp), skb->dev may still hold the dev_scratch value, and dev_net(skb...

CVE-2026-53184

In the Linux kernel, the following vulnerability has been resolved: udp: clear skb-dev before running a sockmap verdict On the UDP receive path skb-dev is repurposed as devscratch the truesize/state cache set by udpsetdevscratch, through the union struct netdevice dev; unsigned long devscratch; i...

PT-2026-52280

Name of the Vulnerable Software and Affected Versions Linux kernel version 7.1.0-rc6 Description An issue exists in the UDP receive path where the skb-dev field is repurposed as dev scratch via a union in sk buff. When a UDP socket is in a sockmap, the sk psock verdict recv function runs an...

PT-2026-52330

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The skb gro receive list function calls skb pullskb, skb gro offsetskb without verifying if the data is in the linear area using pskb may pull. When a socket buffer skb arrives via napi...

CVE-2026-53070

In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb udptunnelxmitskb / udptunnel6xmitskb are expected to run with BH disabled. After commit 6f1a9140ecda "add xmit recursion limit to tunnel xmit functions", on the path:...

CVE-2026-12485 GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command

GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with i...

PT-2026-51658

Name of the Vulnerable Software and Affected Versions GeoVision GV-I/O Box 4E affected versions not specified Description The DVRSearch service, which runs by default on UDP port 10001, processes unauthenticated discovery and configuration messages. A stack-based buffer overflow occurs because th...

PT-2026-51657

Name of the Vulnerable Software and Affected Versions GeoVision GV-I/O Box 4E affected versions not specified Description The DVRSearch service, which runs by default and listens for UDP messages on port 10001, contains a stack-based buffer overflow. The issue occurs when the server processes...

Siemens RuggedCom Rox Integer Underflow (Wrap or Wraparound) (CVE-2019-14199)

An issue was discovered in Das U-Boot through 2019.07. There is an unbounded memcpy when parsing a UDP packet due to a netprocessreceivedpacket integer underflow during an udppackethandler call. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for...

netty-resolver-dns: Netty DNS resolver: DNS Cache Poisoning via predictable transaction IDs

A flaw was found in Netty's DNS resolver component. This vulnerability arises from the use of a predictable pseudo-random number generator PRNG for DNS transaction IDs and a static User Datagram Protocol UDP source port. This combination significantly reduces the randomness of DNS queries, making...

kernel: geneve: Fix use-after-free in geneve_find_dev().

A use-after-free vulnerability exists in the Linux kernel. When devnet is dismantled, the geneveexitbatchrtnl function calls unregisternetdevicequeue for each device in the network namespace. Later, when the device is freed, it is still linked to the backend UDP socket in the network namespace...