wireshark: Heap-based Buffer Overflow in Wireshark

A flaw was found in the RDP protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution...

PT-2026-43424

Name of the Vulnerable Software and Affected Versions Vanetza versions 26.02 and earlier Description A denial-of-service issue exists in the ASN.1/OER parsing pipeline. When the system processes malformed network packets containing corrupted ASN.1/OER structures, such as invalid length fields or...

PT-2026-43236

Name of the Vulnerable Software and Affected Versions Security Gateway affected versions not specified Description The Security Gateway fails to correctly validate a length value in specific IKE packets when NAT-T NAT Traversal, a method allowing VPN traffic to pass through NAT devices is used vi...

CLSA-2026-1779533209 NetworkManager: Fix of CVE-2024-6501

CVE-2024-6501: NULL pointer dereference of n-lldprx in nmlldpneighborparse when DEBUG logging is enabled, leading to denial-of-service on malformed LLDP packets...

CVE-2026-9054 Invalid IP packets cause a kernel panic

An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic...

USN-8286-1 openvpn vulnerabilities

Guannan Wang, Zhanpeng Liu, Guancheng Li, and Emma Reuter discovered that OpenVPN incorrectly handled suitably malformed packets with valid tls-crypt-v2 keys. An attacker could possibly use this issue to cause OpenVPN to crash, resulting in a denial of service. CVE-2026-35058 Guannan Wang, Zhanpe...

ISC BIND 9 安全漏洞

ISC BIND 9 is a domain name system software developed by the ISC organization. ISC BIND 9 has a security vulnerability that arises from the use of TKEY authentication based on GSS-API tokens. Processing maliciously constructed packets may lead to excessive memory consumption. The following versio...

CVE-2026-5405

A flaw was found in the RDP protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution. Mitigation If the RDP protocol dissector is n...

CVE-2026-6525

A flaw was found in the IEEE 802.11 dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a NULL pointer dereference, resulting in a denial of service. Mitigation If the IEEE 802.11 protocol dissector is not being used, it can be...

CVE-2026-5403

A flaw was found in the SBC audio codec in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution. Mitigation If the SBC audio codec dissector is not...

CVE-2026-6523

A flaw was found in the GNW protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing an infinite loop that leads to an excessive consumption of CPU resources, resulting in a denial of service. Mitigation If the GNW protocol...

CVE-2026-5402

A flaw was found in the TLS protocol dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a heap-based buffer overflow, resulting in a denial of service or potentially in code execution. Mitigation If the TLS protocol dissector is n...

CVE-2026-33450 Out of bounds read in Secure Access MacOS clients prior to 14.50

CVE-2026-33450 is an out of bounds read vulnerability in the Secure Access MacOS client prior to 14.50. Attackers with control of a modified server can send a malformed packet to the client causing a denial of service...

PT-2026-36645

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.6.0 through 2.6.19 OpenVPN versions 2.7 alpha1 through 2.7.1 Description A race condition occurs during the TLS handshake, specifically during TLS session promotion. This issue can be triggered by remote attackers, potential...

wireshark: Improperly Controlled Sequential Memory Allocation in Wireshark

A flaw was found in the USB HID dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing an excessive consumption of memory, resulting in a denial of service...

wireshark: Buffer Over-read in Wireshark

A flaw was found in the RF4CE Profile dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing a buffer over-read, resulting in a denial of service...

PT-2026-34377

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: validate inner IPv4 header length in IPTFS payload Add validation of the inner IPv4 packet tot len and ihl fields parsed from decrypted IPTFS payloads in input process payload. A crafted ESP packet containing an inne...

PT-2026-36643

Name of the Vulnerable Software and Affected Versions OpenVPN affected versions not specified Description An issue exists in the tls crypt v2 extract client key function where an uncontrolled assertion is reachable. A remote attacker can trigger a denial of service by sending a suitably malformed...

EUVD-2026-19972

netavark has incorrect error handling for malformed tcp packets...

GHSA-HFPQ-X728-986J netavark has incorrect error handling for malformed tcp packets

Impact A truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. Patches https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 Workarounds None Credits Thanks to @dkane01 for reporti...