DEBIAN-CVE-2026-91951

FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in the urbdrc client channel's urbsendcurrentframenumberresult function. A malicious RDP server can send a crafted 28-byte USB redirection message to trigger a 4-byte write past the allocated 16-byte buffer, causing denia...

Astra Linux – Vulnerability in Firefox and Thunderbird

An attacker could have sent a message to the parent process, with the contents being used to index into a JavaScript object twice. This would lead to prototype pollution, and ultimately, attacker-controlled JavaScript would execute in the privileged parent process. This vulnerability affects...

Astra Linux – Vulnerability in libmodbus

It was discovered that libmodbus v3.1.6 contains a use-after-free issue related to the ctx-backend pointer. This vulnerability allows attackers to trigger a Denial of Service DoS attack by sending a specially crafted message to the unit-test-server...

AZL-99729 CVE-2026-18238 affecting package libpcap for versions less than 1.10.7-1

The rpcap client code that processes a RPCAPMSGPACKET message received from the server incorrectly validates its headers. A malicious server can send a crafted message and cause the client to treat up to 20 bytes of the client process memory beyond the end of the buffer as if it was a part of the...

Linux Distros Unpatched Vulnerability : CVE-2026-40014

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message...

EUVD-2026-67657

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

UBUNTU-CVE-2026-40014

An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...

CVE-2026-30059

An issue in the NAS decoder component of free5gc v4.0.1 allows attackers to cause a Denial of Service DoS via a crafted Registration Request message...

PT-2026-81987

Any remote client can crash a debugging/non-release build type NSD serve child by sending it a special crafted message with a specially tuned number of DNS Cookie options 17 when UDP payload size is 512. By continuously crashing the serve childs, the remote client can severely hamper or, when...

CVE-2026-43798

A single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and content against any application built on swift-nio-ssh. This vulnerability is addressed in swift-nio-ssh version 0.14.1...

JLSEC-2026-1256

An invalid pointer in the modbusreceive function of libmodbus v3.1.6 allows attackers to cause a Denial of Service DoS via a crafted message sent to the unit-test-server...

JLSEC-2026-1255

libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx-backend pointer. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted message sent to the unit-test-server...

CVE-2026-15791

A crafted message in the BuildKit low-level build API can be used to remove the contents of the /tmp directory. The action that can normally be used to delete files inside the build container rootfs can escape into the real host temp directory...

CVE-2026-4942

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security TLS protocol to a version disabled in the server configuration...

dovecot security update

1:2.3.21-19 - update release for rebuild 1:2.3.21-18 - fix CVE-2026-27858: denial of service via crafted message before authentication RHEL-161626 - fix CVE-2025-59032: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command RHEL-162274 - fix CVE-2026-27857: denia...

CVE-2026-6850 Crafted message attachment causes client-side denial of service via markdown parser regex backtracking in Mattermost

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to validate the length and content of message attachment field values, which allows an authenticated attacker to cause a denial of service for all users in a channel via a post containing a specially crafted payload tha...

openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing

A flaw was found in OpenSSL. A remote attacker could exploit this vulnerability by sending a specially crafted Cryptographic Message Syntax CMS EnvelopedData message. During the processing of a KeyTransportRecipientInfo with RSA-OAEP encryption, the system attempts to access an optional parameter...