All news in category “Security Advisory and Patch Watch”

🔒 Microsoft has released the KB5071546 extended security update for Windows 10 Enterprise LTSC and systems enrolled in the ESU program, addressing 57 security vulnerabilities including three zero-days. The mandatory patch updates Windows 10 to build 19045.6691 (LTSC 2021 to 19044.6691) and installs automatically, requiring a restart. Notably, it fixes a remote code execution zero-day in PowerShell (CVE-2025-54100) by adding a confirmation prompt and guidance to use -UseBasicParsing with Invoke-WebRequest to avoid parsing embedded scripts.

🔒 Microsoft's December 2025 Patch Tuesday delivers fixes for 57 vulnerabilities, including three zero-day flaws — one actively exploited and two publicly disclosed. The update addresses 19 remote code execution, 28 elevation of privilege, four information disclosure, three denial of service, and two spoofing issues across Windows, PowerShell, Office, Exchange Server and drivers. Administrators should prioritize the actively exploited CVE-2025-62221 and apply vendor patches promptly.

⚠️ Fortinet released patches for two critical FortiCloud SSO authentication bypass vulnerabilities (CVE-2025-59718, CVE-2025-59719) impacting FortiOS, FortiProxy, FortiSwitchManager, and FortiWeb. Attackers can abuse improper cryptographic signature verification in crafted SAML messages to bypass FortiCloud SSO controls. Administrators should disable FortiCloud SSO until devices are patched — either via System -> Settings in the GUI or with the provided CLI command — and apply the vendor firmware updates promptly. Fortinet also fixed related credential and password-hash issues (CVE-2025-59808, CVE-2025-64471).

🔔 Microsoft released cumulative updates KB5072033 (25H2/24H2) and KB5071417 (23H2) as the December 2025 Patch Tuesday rollup. The mandatory updates include security fixes, bug patches, and new or enhanced features such as improved File Explorer dark mode, Virtual Workspaces advanced settings, and expanded Full‑Screen Experience for handheld devices. Install via Settings > Windows Update or the Microsoft Update Catalog; features will roll out gradually.

⚠️ Ivanti is urging customers to patch a critical vulnerability (CVE-2025-10573) in its Endpoint Manager (EPM) that allows unauthenticated remote actors to execute arbitrary JavaScript via low-complexity cross-site scripting that requires user interaction. Reported by Rapid7, the flaw lets attackers join fake managed endpoints to poison administrator dashboards and hijack admin sessions when viewed. Ivanti released EPM 2024 SU4 SR1 and addressed three other high-severity bugs, while Shadowserver reports hundreds of Internet-facing EPM instances.

⚠️ This joint advisory from CISA, FBI, NSA, and international partners details opportunistic intrusions by pro‑Russia hacktivist groups—CARR, NoName057(16), Z‑Pentest, and Sector16—against OT/ICS environments. Actors are exploiting internet‑exposed VNC services, using open‑source scanning and brute‑force tools to access HMI devices with default or weak credentials, causing loss of view, configuration changes, and operational downtime. The advisory urges organizations to reduce public exposure, apply network segmentation, enforce strong authentication (MFA where feasible), harden device credentials, and follow secure‑by‑design guidance for OT products.

🔔 CISA published three Industrial Control Systems (ICS) advisories addressing vulnerabilities in Universal Boot Loader (U-Boot) (ICSA-25-343-01), the Festo LX Appliance (ICSA-25-343-02), and several India-based CCTV camera models (ICSA-25-343-03). Each advisory provides technical details, impact assessments, and recommended mitigations. CISA urges system operators, vendors, and administrators to review the advisories promptly and apply available updates or compensating controls to reduce operational risk.

⚠️ U-Boot contains an improper access control vulnerability in volatile memory holding boot code (CVE-2025-24857) affecting all U-Boot versions prior to 2017.11 and several Qualcomm SoCs. Successful exploitation could allow arbitrary code execution; CISA reports a CVSS v4 base score of 8.6 with low attack complexity. Vendors advise upgrading to v2025.4, ensuring physical device security, and contacting Qualcomm support where appropriate.

🔒 CISA reports a critical authentication bypass (CWE-306, CVE-2025-13607) affecting multiple India-deployed CCTV products, including D-Link DCS-F5614-L1. The flaw permits unauthenticated remote retrieval of device configuration and account credentials with low attack complexity and high impact. D-Link has released a software update for the DCS-F5614-L1; users should install the patch, verify firmware versions, and minimize network exposure while seeking guidance from other vendors.

🚨 CISA, the FBI, NSA, DOE, EPA, DOD’s DC3, and international partners issued a joint advisory alerting operators that pro‑Russia hacktivist groups are conducting opportunistic, low‑sophistication attacks against U.S. and global critical infrastructure. These actors exploit internet‑facing OT components (notably VNC and SCADA) and sometimes combine intrusions with DDoS. The advisory urges immediate mitigations: reduce OT exposure, improve asset management, and enforce robust authentication.

🔒 CISA has added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog: CVE-2025-6218 (WinRAR path traversal) and CVE-2025-62221 (Microsoft Windows use-after-free). The agency cited evidence of active exploitation and emphasized that these flaws are frequent attack vectors posing significant risk to the federal enterprise. CISA reiterated that BOD 22-01 requires FCEB agencies to remediate cataloged CVEs by the required due dates and urged all organizations to prioritize timely remediation.

⚠️ Festo SE & Co. KG's LX Appliance contains a cross-site scripting (XSS) vulnerability tied to the video.js library (CVE-2021-23414) that can allow crafted course content to execute scripts in high-privilege user sessions. The issue affects LX Appliance versions prior to June 2023 and has a CVSS v3.1 base score of 6.1. Festo coordinated disclosure with CERT@VDE and published advisory FSA-202301. Administrators should update affected appliances and apply recommended network isolation and secure remote access controls.

🔔 Microsoft’s December 2025 Patch Tuesday addresses 57 CVEs, including one actively exploited Important zero‑day in the Windows Cloud Files Mini Filter Driver and two publicly disclosed Important zero‑days impacting GitHub Copilot for JetBrains and PowerShell. Two Critical RCE flaws in Microsoft Office increase urgency for enterprise patching and remediation. Organizations should prioritize applying Microsoft fixes, adopt layered mitigations where patches are delayed, and use CrowdStrike Falcon dashboards to track affected assets and remediation progress.

🛡️ Two malicious Visual Studio Code extensions on Microsoft's Marketplace, Bitcoin Black and Codo AI, were found delivering an information-stealing payload that can capture screenshots, harvest credentials and crypto wallets, and hijack browser sessions. Published under the developer name 'BigBlack', Codo AI remained live with under 30 downloads at the time of reporting while Bitcoin Black showed a single install. Researchers at Koi Security observed that Bitcoin Black uses a wildcard activation and executes PowerShell or a hidden batch script to download a DLL and executable that leverage DLL hijacking to run the infostealer as 'runtime.exe'.

⚠️ Apache Tika maintainers warn that an XML External Entity (XXE) vulnerability originally disclosed in August (CVE-2025-54988) is broader than first reported and is now covered by a superset CVE (CVE-2025-66516). The issue affects tika-core, tika-parsers and the standalone tika-parser-pdf-module, and could allow attackers to read sensitive data or trigger requests to internal resources. Users are advised to upgrade to the patched releases or disable XML parsing via tika-config.xml to mitigate risk.

🔔 CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog: CVE-2022-37055, a buffer overflow affecting D-Link routers, and CVE-2025-66644, an OS command injection in Array Networks ArrayOS AG. Both were included based on evidence of active exploitation. Under BOD 22-01, Federal Civilian Executive Branch agencies are required to remediate KEV entries by their due dates, and CISA urges all organizations to prioritize timely remediation and risk-reduction measures.

🔴 The newly disclosed React2Shell vulnerability (CVE-2025-55182) is being actively exploited in the wild and carries a CVSS v3.1 score of 10. AWS has attributed exploitation attempts to state-linked groups including Earth Lamia and Jackpot Panda, while multiple proof-of-concept exploits have rapidly appeared. Broad scans from Shadowserver and Censys show tens of thousands to over two million potentially affected instances, and defenders are urged to apply the published React security updates immediately.

🔴 React2Shell (CVE-2025-55182) is an unauthenticated remote code execution flaw in React Server Components and frameworks like Next.js, disclosed on December 3, 2025. A public proof-of-concept on December 4 accelerated automated scanning and exploitation; Shadowserver found 77,664 vulnerable IPs (≈23,700 in the US), and Palo Alto reports more than 30 breached organizations. Observed attacks use PowerShell stages, AMSI bypass and Cobalt Strike; mitigation requires updating React, rebuilding and redeploying apps, and reviewing logs for post-exploitation indicators.

⚠️Researchers disclosed more than 30 vulnerabilities in AI-integrated IDEs in a report dubbed IDEsaster by Ari Marzouk (MaccariTA). The issues chain prompt-injection with auto-approved agent tooling and legitimate IDE features to achieve data exfiltration and remote code execution across products like Cursor, GitHub Copilot, Zed.dev, and others. Of the findings, 24 received CVE identifiers; exploit examples include workspace writes that cause outbound requests, settings hijacks that point executable paths to attacker binaries, and multi-root overrides that trigger execution. Researchers advise using AI agents only with trusted projects, applying least privilege to tool access, hardening prompts, and sandboxing risky operations.

⚠️ CISA has added a critical remote code execution flaw affecting React Server Components (tracked as CVE-2025-55182 / React2Shell) to its Known Exploited Vulnerabilities catalog. The vulnerability, rated CVSS 10.0, stems from insecure deserialization in React’s Flight protocol and enables unauthenticated attackers to run arbitrary commands via crafted HTTP requests. Fixes are available in react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack (versions 19.0.1, 19.1.2, 19.2.1) and should be applied immediately.