May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5088860)

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PT-2026-40132

Name of the Vulnerable Software and Affected Versions Microsoft Visual Studio/.NET versions prior to 10.0.8 Description A tampering issue occurs when .NET Core improperly handles specially crafted files. An attacker can exploit this by sending a specially crafted file to a vulnerable system,...

Linux Distros Unpatched Vulnerability : CVE-2026-42257

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, several Net::IMAP commands...

UBUNTU-CVE-2026-42899

Loop with unreachable exit condition 'infinite loop' in ASP.NET Core allows an unauthorized attacker to deny service over a network...

OPENSUSE-SU-2026:10756-1 perl-Net-CIDR-0.270.0-2.1 on GA media

These are all security issues fixed in the perl-Net-CIDR-0.270.0-2.1 package on the GA media of openSUSE Tumbleweed...

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...

May 12, 2026-KB5088863 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

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PT-2026-40187

Name of the Vulnerable Software and Affected Versions .NET affected versions not specified Description Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally...

CVE-2026-32177

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally...

The vulnerability in the net/core/skmsg.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the net/core/skmsg.c module of the Linux operating system is related to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to cause a service failure...

golang: net/url: Memory exhaustion in query parameter parsing in net/url

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted...

SUSE CVE-2026-43383

In the Linux kernel, the following vulnerability has been resolved: net/tcp-md5: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

SUSE CVE-2026-45190

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the inp...

SUSE CVE-2026-45191

Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass. Mask forms like "/00" and "/01" pass validation and parse to the same prefix as their unpadded value. See also CVE-2026-45190...

BIT-GOLANG-2026-39836 Panic in Dial and LookupPort when handling NUL byte on Windows in net

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL 0...

BIT-GOLANG-2026-39820 Quadratic string concatentation in consumeComment in net/mail

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations...

RHEL 9 : buildah (RHSA-2026:16102)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:16102 advisory. The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a...

Linux Distros Unpatched Vulnerability : CVE-2026-45190

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a...

Linux Distros Unpatched Vulnerability : CVE-2026-45191

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass. Mask for...

EUVD-2026-28998

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the inp...