CVE-2026-7422 MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and IPv6 Packet Processing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

CVE-2026-7422 MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and IPv6 Packet Processing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

CVE-2026-7422 MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and IPv6 Packet Processing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

CISA Adds Actively Exploited ConnectWise and Windows Flaws to KEV

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Tuesday added two security flaws impacting ConnectWise ScreenConnect and Microsoft Windows to its Known Exploited Vulnerabilities KEV catalog, based on evidence of active exploitation. The vulnerabilities are listed below -...

CVE-2026-7422: Authentication Bypass by Spoofing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

PT-2026-37108

Name of the Vulnerable Software and Affected Versions CKAN versions prior to 2.10.10 CKAN versions prior to 2.11.5 Description The configured SMTP server may be spoofed using any certificate, such as a self-signed one. This allows for Man-in-the-Middle MITM attacks, where an attacker intercepts...

TencentOS Server 3: thunderbird (TSSA-2026:0263)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0263 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

Debian dla-4552 : node-tar - security update

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4552 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4552-1 [email protected]...

Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input due to improper handling of oversized Subject Alternative Name fields during certificate validation. An attacker can bypass certificate validation by crafting a certificate with an...

PT-2026-35973

Name of the Vulnerable Software and Affected Versions FreeRTOS-Plus-TCP versions prior to 4.2.6 FreeRTOS-Plus-TCP versions prior to 4.4.1 Description Insufficient packet validation allows an adjacent network actor to bypass checksum and minimum-size validation. This occurs because the loopback...

FreeBSD : Mozilla -- Spoofing issue (75b1251d-4305-11f1-a627-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 75b1251d-4305-11f1-a627-b42e991fc52e advisory. https://bugzilla.mozilla.org/showbug.cgi?id=2021080 reports: Spoofing issue in the DOM: Core & HTML...

CVE-2026-40575

A flaw was found in OAuth2 Proxy. When configured with --reverse-proxy and either --skip-auth-regex or --skip-auth-route, the proxy may trust a client-supplied X-Forwarded-Uri header. An unauthenticated remote attacker can exploit this by spoofing the header, leading to an authentication bypass...

USN-8216-1: .NET vulnerabilities

Ludvig Pedersen discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to consume excessive resources, resulting in a denial of service. CVE-2026-33116, CVE-2026-26171 Ludvig Pedersen and Kevin Jones...

USN-8216-1 dotnet10 vulnerabilities

Ludvig Pedersen discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to consume excessive resources, resulting in a denial of service. CVE-2026-33116, CVE-2026-26171 Ludvig Pedersen and Kevin Jones...

Microsoft Confirms Active Exploitation of Windows Shell CVE-2026-32202

Microsoft on Monday revised its advisory for a now-patched, high-severity security flaw impacting Windows Shell to acknowledge that it has been actively exploited in the wild. The vulnerability in question is CVE-2026-32202 CVSS score: 4.3, a spoofing vulnerability that could allow an attacker to...

RockyLinux 9 : firefox (RLSA-2026:10757)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:10757 advisory. firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScri...

The vulnerability of the Containous Traefik reverse proxy server, related to bypassing authentication through spoofing, allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the Containous Traefik reverse proxy server relates to the bypassing of authentication procedures through spoofing. Exploiting this vulnerability allows a malicious actor to compromise the confidentiality, integrity, and accessibility of the protected information...

Microsoft Windows Protection Mechanism Failure Vulnerability

Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network...

Security Bulletin: IBM WebSphere Application Server Liberty, which is bundled with IBM Cloud Pak for Applications, is affected by an identity spoofing vulnerability (CVE-2026-3621)

Summary IBM WebSphere Application Server Liberty, which is bundled with IBM Cloud Pak for Applications, is affected by an identity spoofing vulnerability when the appSecurity feature appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, appSecurity-4.0, or appSecurity-5.0 is not enabled on the serve...

Security Bulletin: IBM WebSphere Application Server Liberty, which is bundled with IBM Enterprise Application Runtimes, is affected by an identity spoofing vulnerability (CVE-2026-3621)

Summary IBM WebSphere Application Server Liberty, which is bundled with IBM Enterprise Application Runtimes, is affected by an identity spoofing vulnerability when the appSecurity feature appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, appSecurity-4.0, or appSecurity-5.0 is not enabled on the...