CVE-2026-46037 ipv4: icmp: validate reply type before using icmp_pointers

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which arises from the lack of validation when ICMP reply types exceed the range of the icmppointers array, potentially...

Astra Linux – Vulnerability in Thunderbird

If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses before the STARTTLS handshake was completed, then Thunderbird did not ignore the injected data. This could result in Thunderbird displaying incorrect information. For example, the...

CVE-2026-42245

A flaw was found in Net::IMAP, a Ruby library implementing the Internet Message Access Protocol IMAP client functionality. A hostile server can exploit a quadratic time complexity issue in the Net::IMAP::ResponseReader when processing large responses containing numerous string literals. This can...

CVE-2026-44248 Netty: Resource exhaustion in MqttDecoder

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

PT-2026-39942

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are...

CVE-2026-43099

The CVE-2026-43099 issue affects the Linux kernel, specifically the IPv4/ICMP path and the IPv6 stub handling. When the IPv6 stack is not active (CONFIG_IPV6=m and not loaded), ipv6_dev_find() may return ERR_PTR(-EAFNOSUPPORT); passing that to dev_hold() can cause a null pointer dereference and a...

Linux Distros Unpatched Vulnerability : CVE-2026-43099

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv4: icmp: fix null-ptr-deref in icmpbuildprobe ipv6stub-ipv6devfind may return ERRPTR-EAFNOSUPPORT when the IPv6 stack is not active CONFIGIPV6=m and not...

CVE-2026-43037

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

ovn: ovn: Heap Over-Read in ICMP Error Response Generation

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length iptotlen for IPv4, ip6plen for IPv6 without validating it against the actual packet buffer size...

CVE-2026-32324 Anviz CX7 Firmware Use of Hard-coded Cryptographic Key

Anviz CX7 Firmware is vulnerable because the application embeds reusable certificate/key material, enabling decryption of MQTT traffic and potential interaction with device messaging channels at scale...

Tracing the Chain: Deep Learning for Stepping-Stone Intrusion Detection

Stepping-stone intrusions SSIs are a prevalent network evasion technique in which attackers route sessions through chains of compromised intermediate hosts to obscure their origin. Effective SSI detection requires correlating the incoming and outgoing flows at each relay host at extremely low fal...

CVE-2025-62818

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. An out-of-bounds write occurs due to a mismatch between the TP-UDHI...

CVE-2026-35538

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search...

CLSA-2026-1774614606 python3: Fix of CVE-2025-15366

CVE-2025-15366: reject control characters in IMAP commands...

SUSE CVE-2026-33217

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using ACLs on message subjects, these ACLs were not applied in the $MQTT. namespace, allowing MQTT clients to bypass ACL checks for MQTT subjects. Versions...

CVE-2026-23398 icmp: fix NULL pointer dereference in icmp_tag_validation()

In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmptagvalidation icmptagvalidation unconditionally dereferences the result of rcudereferenceinetprotosproto without checking for NULL. The inetprotos array is sparse -- only about 15 of 256...

Linux Distros Unpatched Vulnerability : CVE-2026-33217

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using ACLs on message...

CVE-2026-33217

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using ACLs on message subjects, these ACLs were not applied in the $MQTT. namespace, allowing MQTT clients to bypass ACL checks for MQTT subjects. Versions...