All news with #patch tuesday tag

🔒 Researchers published a working exploit on July 24 that lets a low-privileged Active Directory user obtain a certificate for a Domain Controller and authenticate as that machine. Codenamed Certighost, the flaw enables a Kerberos credential capable of DCSync to retrieve the krbtgt secret. Microsoft patched AD CS as CVE-2026-54121 on July 14 and rated it a CVSS 8.8; the full proof-of-concept was released publicly.

🛡️ Oracle’s July 2026 Critical Patch Update is its largest ever, delivering 1,449 fixes across 32 product families, including Database, Fusion Middleware, Java SE, and GoldenGate. Fusion Middleware saw 355 vulnerabilities, 219 exploitable remotely without authentication, and ten scored a CVSS 10.0. Database Server received critical fixes including CVE-2026-61211 (CVSS 9.9) in DBMS_CLOUD and an Oracle Net Services flaw, with additional OpenSSL-related patches. Experts urge rapid triage based on exposure and business impact as the sheer volume outpaces typical patching workflows.

🛠️ Microsoft released out-of-band updates to address a compatibility issue that caused some Dell PCs to shut down or suffer performance and power problems after July 2026 Windows 11 updates. The bug stems from a June preview change to the Windows USB-C Connection Manager that conflicts with the Intel Innovation Platform Framework (IPF) Processor Participant driver, producing a yellow exclamation in Device Manager. Microsoft blocked the July update on affected systems and on Saturday shipped emergency updates KB5121767 and KB5121768 for Windows 11 25H2, 24H2 and Enterprise LTSC 2024 to resolve the issue. Managed devices with Autopatch will get the fix automatically, while Intune admins can accelerate deployment; affected users should restart after installation.

🔒 CISA has ordered U.S. federal agencies to urgently patch two actively exploited critical vulnerabilities in the Fortinet FortiSandbox platform. The flaws (CVE-2026-39808 and CVE-2026-25089) were fixed by Fortinet in April and June, and allow unauthenticated remote command injection with low complexity. Defused and CISA confirmed in-the-wild exploitation, and agencies must remediate by Sunday, July 19. Administrators are advised to upgrade affected deployments to the latest released versions to block attacks.

🔥 This week’s Threat Source highlights a record Microsoft Patch Tuesday that fixed 622 vulnerabilities, including two zero‑days being actively exploited. Cisco Talos discloses UAT‑11795, a Russian‑speaking group using trojanized installers to deliver the Python-based Starland RAT and an in-memory PowerShell implant called WLDR agent. The newsletter outlines detection guidance and emphasizes the operational stress on IT teams facing accelerated vulnerability discovery driven by frontier AI research.

🔒 CISA has warned that three Microsoft SharePoint vulnerabilities are being actively exploited and urged organizations to immediately patch on-premises SharePoint deployments. Administrators should follow Microsoft’s mitigation guidance, enable AMSI integration, hunt for indicators of compromise, and rotate machine keys where appropriate. The agency added CVE-2026-33201, CVE-2026-45659, and the newly listed CVE-2026-56164 to its Known Exploited Vulnerabilities catalog and required rapid remediation for federal agencies.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch systems by Saturday to mitigate active exploitation of a critical Oracle E-Business Suite vulnerability, tracked as CVE-2026-46817. The flaw in the Oracle Payments File Transmission component allows unauthenticated HTTP access leading to system takeover in low-complexity attacks. Oracle issued fixes in its May 2026 Critical Security Patch Update and urged immediate patching, while security firms and CISA have observed active exploitation. Shadowserver reports over 1,000 Internet-exposed Oracle EBS instances, many in the U.S., prompting CISA to add the flaw to its list of known exploited vulnerabilities and mandate remediation under BOD 26-04.

🔒 July’s Patch Tuesday from Microsoft addressed an unprecedented number of vulnerabilities, with reports of 570–622 CVEs (620 if platform-level fixes are counted), plus hundreds in Chromium. The release includes many high-severity flaws — notably elevation of privilege and remote code execution bugs — with only three zero-days and 59 critical issues. Microsoft’s new summary-style advisories and its AI-powered MDASH scanning explain the surge, forcing organizations to reassess patch management and prioritization.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned that attackers are actively exploiting three SharePoint Server vulnerabilities (CVE-2026-32201, CVE-2026-45659, CVE-2026-56164) in Internet-exposed on-premises instances. The flaws enable authentication bypass, remote code execution, and post-exploitation activity including theft of IIS machine keys and persistence to deploy malware. CISA urged administrators to apply Microsoft's patches, verify installation, shorten patch cycles, enable AMSI integration for SharePoint, use Microsoft Defender Antivirus detections, and implement hardening and monitoring measures.

🛡️ Microsoft released updates for 570 CVEs on the July 14 Patch Tuesday, prompted by its use of agentic AI to discover flaws. The update batch includes three zero-days (two exploited in the wild) and a large number of elevation-of-privilege, remote code execution and information disclosure bugs. Experts warn this surge is becoming the new normal and urge organizations to adopt risk-based patching, attack-surface reduction and scalable processes.

🛡️ SonicWall warns customers that two SMA1000 vulnerabilities, CVE-2026-15409 and CVE-2026-15410, are being actively exploited and urges immediate installation of hotfixes. CVE-2026-15409 is a critical SSRF (CVSS 10.0) in the Appliance Work Place interface allowing unauthenticated requests, while CVE-2026-15410 is a high-severity post-authentication code injection (CVSS 7.2) enabling OS command execution. Fixes are available in platform-hotfix versions 12.4.3-03453 and 12.5.0-02835 and later; SonicWall provided IOCs and recommends re-imaging compromised devices.

🛡️ Microsoft released its July 2026 security updates addressing 622 vulnerabilities across many products, including 57 marked critical. Two flaws have confirmed in-the-wild exploitation: an AD FS elevation of privilege (CVE-2026-56155) and a SharePoint spoofing/authentication issue (CVE-2026-56164). Talos highlights multiple critical remote-code-execution and elevation-of-privilege flaws affecting Windows components, Office, SharePoint, SQL Server, Defender, Copilot and cloud services. Cisco Talos also published Snort rules and urged customers to update intrusion-detection rule sets to detect exploitation attempts.

🔒 Microsoft released its largest Patch Tuesday ever, addressing 622 CVEs including two actively exploited elevation-of-privilege flaws in on‑premises SharePoint Server (CVE-2026-56164) and Active Directory Federation Services (CVE-2026-56155). The SharePoint bug allows unauthenticated network privilege escalation and is tied to incident responders at Mandiant and Google's FLARE; admins should patch immediately and consider enabling AMSI Full Mode. The AD FS bug permits local privilege escalation for authenticated users and was credited to Microsoft DART. A third disclosed BitLocker bypass (CVE-2026-50661) requires physical access and is lower priority. The update also finalizes Kerberos RC4 hardening, risking authentication breaks for service accounts still using RC4 unless audited and rotated first. Microsoft says AI tooling increased bug discovery, and the scale of fixes means organizations should prioritize by exploitation status rather than CVSS score.

🔒 Microsoft released updates addressing a record 570 security vulnerabilities in July’s Patch Tuesday, attributing the surge to AI-assisted discovery. Nearly 60 of the flaws are rated critical, and three are confirmed zero-days already exploited in the wild. The fixes include numerous elevation-of-privilege bugs and a BitLocker security bypass; vendors warn that AI speeds both discovery and exploit development.

🔒 Microsoft released the Windows 10 KB5099539 extended security update, delivering the July 2026 Patch Tuesday fixes and additional security and reliability improvements for enrolled devices and LTSC editions. The update moves Windows 10 to build 19045.7548 (19044.7548 for Enterprise LTSC 2021) and addresses a record 570 vulnerabilities, including two exploited and one publicly disclosed zero-day. Administrators and eligible consumers can install it via Settings > Windows Update; several known issues and hardening changes are documented.

🛈 Microsoft released Windows 11 cumulative updates KB5101650 and KB5099414 for 25H2/24H2 and 23H2 to deliver July 2026 Patch Tuesday fixes addressing security vulnerabilities, bug fixes, and feature refinements. The rollouts update build numbers and include notable Bluetooth pairing improvements, a quieter Widgets experience, enhanced accessibility controls, File Explorer and networking fixes, and Point-in-Time restore availability. Install via Settings > Windows Update or the Microsoft Update Catalog.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency has ordered federal agencies to patch an actively exploited, maximum-severity vulnerability in Adobe ColdFusion (CVE-2026-48282) by Friday. Adobe published fixes for affected ColdFusion versions last week and urged administrators to install updates immediately. The flaw enables unauthenticated remote code execution in low-complexity attacks and has been observed in the wild soon after disclosure. CISA added the issue to its KEV catalog and invoked BOD 26-04 to enforce remediation timelines for FCEB agencies.

🛡️ A newly disclosed Linux kernel vulnerability, Bad Epoll (CVE-2026-46242), allows an ordinary local user to escalate privileges to root and affects Linux desktops, servers, and Android. The flaw is a use-after-free race in the epoll subsystem; the timing window is tiny but an exploit by researcher Jaeyoung Chung widens it and succeeds reliably. A fix is available upstream (commit a6dc643c6931) and distributions should backport it; kernels built on 6.4+ are affected unless patched.

🛡️ Adobe will publish security updates twice each month to address faster vulnerability discovery and exploitation. The company will keep its existing second-Tuesday schedule and add a fourth-Tuesday release starting July, applying to advisories with CVEs needing customer action. Adobe cited increased threats and investment in vulnerability discovery as drivers for the new cadence. The change mirrors industry trends toward more frequent patching.

🔔 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has set a June 28 deadline under BOD 26-04 for federal agencies to patch a critical Cisco Unified Communications Manager Server SSRF vulnerability, CVE-2026-20230, which is being actively exploited. Cisco released a patch on June 3 and labeled the issue critical after a proof-of-concept existed; subsequent reports showed active attacks writing arbitrary files. CISA also added a critical RCE flaw, CVE-2026-12569, affecting PTC Windchill and FlexPLM products to its Known Exploited Vulnerabilities list, requiring immediate remediation.