Microsoft June 2026 Patch Tuesday Fixes 206 Flaws and 3 Zero-Days

Microsoft’s June 2026 patch Tuesday resolves 206 vulnerabilities, including 3 critical zero-days and severe 9.8 CVSS kernel, network and HTTP.sys flaws...

CVE-2026-45160

ESF-IDF is the Espressif Internet of Things IOT Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser parseoptions in components/lwip/apps/dhcpserver/dhcpserver.c shipped with ESP-IDF's lwIP component. The pars...

CVE-2026-45479 Microsoft SharePoint Server Spoofing Vulnerability

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CVE-2026-11785

A flaw was found in 389 Directory Server. A type confusion in the SSO token extended operation handler causes partial stack address information to be disclosed in LDAP responses to authenticated users...

UBUNTU-CVE-2026-11790

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication,...

CVE-2026-11790

The CVE-2026-11790 entry describes a vulnerability in 389 Directory Server’s PBKDF2-SHA256 password storage plugin where there is no upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user’s password hash can trigger excessive CPU usag...

EUVD-2026-35420

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure...

CVE-2026-11787

A flaw was found in 389 Directory Server. The ldaputf8prev function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior...

CVE-2026-11788

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure...

EUVD-2026-35417

A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation...

PT-2026-47777

Name of the Vulnerable Software and Affected Versions 389 Directory Server affected versions not specified Description A flaw exists in the ldap utf8prev function where bytes are read before the start of a buffer without proper bounds checking. This leads to a heap buffer over-read during string...

xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access

A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash,...

USN-8384-1: Apache HTTP Server vulnerability

It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attacker could possibly use this issue to cause Apache HTTP Server to consume excessive resources, resulting in a denial of service...

CVE-2026-10099

XX-Net V5.16.6 contains a WebSocket frame parsing vulnerability in the WebSocketreceiveworker routine of simplehttpserver.py that allows attackers to cause corrupted application data by sending unmasked WebSocket frames. The server unconditionally reads 4 bytes as a masking key regardless of...

xwayland: xorg: X.Org X server: Information disclosure and denial of service via out-of-bounds read in XKB geometry processing.

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the CheckSetGeom and XkbAddGeomKeyAlias functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server,...

Synology BeeDrive 安全漏洞

Synology BeeDrive is a backup and synchronization device developed by the Chinese company Synology. Versions of Synology BeeDrive prior to 1.3.2-13814 contained a security vulnerability. This vulnerability stemmed from the redis-server component, where external access to certain files or...

TigerVNC: x0vncserver: TigerVNC x0vncserver: Information disclosure, data manipulation, and denial of service via incorrect permissions

A flaw was found in TigerVNC's x0vncserver component. Due to incorrect permissions in the Image.cxx file, other users on the system can observe or manipulate the screen contents of a running session. This vulnerability could also lead to an application crash, resulting in a Denial of Service DoS...

TencentOS Server 3: tigervnc (TSSA-2025:1016)

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-2025:1016 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

⚡ Weekly Recap: Exchange 0-Day, npm Worm, Fake AI Repo, Cisco Exploit and More

Monday opens with a trust problem. A mail server flaw is under active use. A network control system was targeted. Trusted packages were poisoned. A fake model page pushed a stealer. Then came the familiar ransom claim: the data was returned and deleted. The pattern is clear. One weak dependency c...

Alibaba Cloud Linux 3 : 0105: xorg-x11-server-Xwayland (ALINUX3-SA-2026:0105)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0105 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-33999: A flaw was found in the...