Patch Tuesday - May 2026

Microsoft is publishing 137 vulnerabilities on May 2026 Patch Tuesday. Microsoft is not aware of exploitation in the wild or public disclosure for any of these vulnerabilities. So far this month, Microsoft has provided patches to address 133 browser vulnerabilities, which are not included in the...

CVE-2026-35423

Technical details (affected product, root cause, impact, or fixes) are not publicly available in the provided documents. Monitor for updates from NVD/EUVD/CVE listings for additional specifics.

CVE-2026-7432

A race condition in Ivanti Secure Access Client before 22.8R6 allows a locally authenticated user to escalate privileges to SYSTEM...

PT-2026-44982

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.26.0 Description A heap-buffer-overflow write can be triggered in the client when connecting to a malicious RDP server that sends crafted RDPGFX PDUs Protocol Data Units. The issue occurs in the gdi CacheToSurface...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state CVE-2026-23136 kernel: Linux kernel: Use-after-free in traffic control actct may lead to denial of...

Linux Distros Unpatched Vulnerability : CVE-2026-31609

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in smbdfreesendio after smbdsendbatchflush smbdsendbatchflush...

securedrop-client 安全漏洞

Securedrop-client is an open-source application developed by the Freedom of the Press Foundation. Versions of Securedrop-client prior to 0.17.4 contain security vulnerabilities. These vulnerabilities stem from improper filename validation during the gzip archive extraction process. Allowing...

PT-2026-33475

Name of the Vulnerable Software and Affected Versions Firebird client library version FB3 Description The FB3 client library places incorrect data length values into XSQLDA fields when communicating with Firebird servers version FB4 or higher, which leads to an information leak. Recommendations...

PT-2026-33810

Summary [email protected] is vulnerable to denial of service through unbounded memory growth while processing directory listings from a remote FTP server. A malicious or compromised server can send an extremely large or never-ending listing response to Client.list, causing the client process to...

EUVD-2026-19961

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

DEBIAN-CVE-2026-28387

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

ALPINE-CVE-2026-28387

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

CVE-2026-28387

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

CVE-2026-28387

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

CVE-2026-28387

CVE-2026-28387 is a vulnerability in the DANE client code of OpenSSL related to an uncommon TLSA record configuration that may cause a use-after-free or double-free on the client. Public advisories across multiple vendors confirm the issue and reference OpenSSL versions affected and available fix...

CVE-2026-28387 Potential Use-after-free in DANE Client Code

Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequenc...

freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in GDI surface pipeline

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A malicious RDP server can exploit a heap buffer overflow vulnerability by sending a specially crafted graphics command to a FreeRDP client. This allows the server to write data outside of its intended memory...

freerdp: FreeRDP: Denial of Service via FastGlyph parsing buffer overflow

A flaw was found in FreeRDP. A malicious server can exploit a vulnerability in FastGlyph parsing, which improperly trusts data length without sufficient validation. This can lead to a client-side global buffer overflow, resulting in a denial of service DoS due to a crash. For this vulnerability t...

freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in GDI surface pipeline

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A malicious RDP server can exploit a heap buffer overflow vulnerability by sending a specially crafted graphics command to a FreeRDP client. This allows the server to write data outside of its intended memory...

CVE-2026-3849 Buffer Overflow in HPKE via Oversized ECH Config

Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...