All news with #insecure deserialization tag

🔴 The Cybersecurity and Infrastructure Security Agency (CISA) warned that a critical deserialization vulnerability in Microsoft SharePoint, tracked as CVE-2026-20963, is being exploited in the wild. The flaw affects SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition and can allow unauthenticated remote code execution on unpatched servers. Microsoft patched the issue during January Patch Tuesday but has not labeled it as exploited; CISA added the vulnerability to its actively exploited catalog and ordered federal agencies to remediate by March 21.

⚠️ CISA has added CVE-2026-20963 — a Microsoft SharePoint deserialization of untrusted data vulnerability — to its Known Exploited Vulnerabilities (KEV) Catalog after observing active exploitation. This class of flaw is a frequent attack vector that can allow malicious actors to execute code or manipulate data when untrusted input is deserialized. CISA reminds Federal Civilian Executive Branch agencies that BOD 22-01 requires remediation by the assigned due dates and strongly urges all organizations to prioritize timely fixes.

🔒 A deserialization vulnerability in Inductive Automation Ignition (CVE-2025-13913) allows a privileged, authenticated user to import a crafted file that executes embedded code during deserialization, potentially running with the OS application service account's permissions. The flaw affects Ignition versions prior to 8.3.0 and carries a CVSS v3.1 base score of 6.3; CISA reports it is not remotely exploitable and no public exploitation is known. Remediation is to upgrade to 8.3.0 or later. As interim mitigations, follow the Ignition Security Hardening Guide, restrict project imports to trusted sources, use dedicated low-privilege service accounts, and segment gateways from corporate networks.

🔒 CISA has flagged a critical SolarWinds Web Help Desk vulnerability (CVE-2025-40551) as actively exploited and ordered federal agencies to patch within three days under BOD 22-01. The flaw is an untrusted data deserialization weakness that can enable unauthenticated remote command execution; SolarWinds released Web Help Desk 2026.1 on January 28 to address it. Administrators are urged to apply the patch immediately and verify affected systems.

⚠️ Hitachi Energy has disclosed a critical remote code execution vulnerability in Asset Suite, caused by a Java deserialization flaw in the Jaspersoft library (CVE-2025-10492). The issue affects Asset Suite versions 9.7 and earlier and carries a CVSS v3.1 base score of 9.8 — allowing attackers to execute arbitrary code on vulnerable systems. Hitachi Energy advises upgrading to version 9.8 to remediate the defect. Until patched, administrators should restrict loading of external custom reports, segment networks, and deny internet exposure for control system devices.

⚠️ 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.

🛡️ A critical remote code execution flaw, CVE-2025-55182 (React4Shell), was disclosed affecting React Server Components and multiple derivatives including Next.js, React Router RSC preview, and several bundler plugins. The bug arises from unsafe deserialization of Flight protocol payloads and permits unauthenticated HTTP requests to execute code on vulnerable servers. Immediate updating to the patched React and Next.js releases, plus deployment of WAF rules and access restrictions, is strongly recommended.

🚨 React and Next.js applications are affected by a maximum-severity deserialization vulnerability dubbed React2Shell, which enables unauthenticated remote code execution via the React Server Components (RSC) "Flight" protocol. Discovered by researcher Lachlan Davidson and reported on November 29, the flaw received a 10/10 severity rating and has been assigned CVE-2025-55182 for React (Next.js received CVE-2025-66478, later rejected by the NVD). Affected default packages include react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack, and researchers warn many deployments are exploitable without additional misconfiguration. Developers should apply the published patches and audit environments immediately.

⚠️ Developers must immediately upgrade React 19 and affected frameworks such as Next.js after researchers at Wiz disclosed a critical deserialization vulnerability in the React Server Components (RSC) Flight protocol that can enable remote code execution. The flaw exists in default configurations and impacts React 19.0.0, 19.1.0, 19.1.1 and 19.2.0, while Next.js 15.x and 16.x App Router deployments received a related CVE. Upgrade to the latest vendor-recommended releases now and follow the React blog's guidance.

🚨 A maximum-severity remote code execution vulnerability in React Server Components (CVE-2025-55182, CVSS 10.0) allows unauthenticated attackers to execute arbitrary JavaScript by sending crafted payloads to Server Function endpoints. Affected npm packages include react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack in specific 19.x releases; fixes are available in 19.0.1, 19.1.2, and 19.2.1. The issue also impacts Next.js (CVE-2025-66478, CVSS 10.0) across multiple releases and has been patched in a series of 15.x and 16.x updates. Security firm Wiz reports roughly 39% of cloud environments host vulnerable instances; apply patches immediately.

⚠️ Oligo Security researcher Avi Lumelsky disclosed a widespread insecure-deserialization pattern dubbed ShadowMQ that affects major AI inference engines including vLLM, NVIDIA TensorRT-LLM, Microsoft Sarathi-Serve, Modular Max Server and SGLang. The root cause is using ZeroMQ's recv_pyobj() to deserialize network input with Python's pickle, permitting remote arbitrary code execution. Patches vary: some projects fixed the issue, others remain partially addressed or unpatched, and mitigations include applying updates, removing exposed ZMQ sockets, and auditing code for unsafe deserialization.

🔒 Cybersecurity researchers disclosed a chain of remote code execution (RCE) vulnerabilities affecting AI inference frameworks from Meta, NVIDIA, Microsoft and open-source projects such as vLLM and SGLang. The flaws stem from reused code that called ZeroMQ’s recv-pyobj() and passed data directly into Python’s pickle.loads(), enabling unauthenticated RCE over exposed sockets. Vendors have released patches replacing unsafe pickle usage with JSON-based serialization and adding authentication and transport protections. Operators are urged to upgrade to patched releases and harden ZMQ channels, restrict network exposure, and avoid deserializing untrusted data.

⚠️ A critical unauthenticated remote code execution vulnerability in Microsoft Windows Server Update Services was identified as CVE-2025-59287 and observed being actively exploited in October 2025. The flaw stems from unsafe deserialization in WSUS endpoints (GetCookie and ReportingWebService) and enables remote attackers to execute arbitrary code as SYSTEM. Microsoft issued an emergency out-of-band patch on Oct 23 after initial Patch Tuesday fixes were incomplete; organizations should apply the update or follow temporary mitigations such as disabling the WSUS Server Role or blocking inbound TCP ports 8530/8531 immediately.

🔒 SAP has released security updates addressing 13 vulnerabilities, including a maximum-severity insecure deserialization flaw in NetWeaver AS Java (CVE-2025-42944, CVSS 10.0) that can lead to arbitrary OS command execution via the RMI‑P4 module. The vendor's latest patch adds a JVM-wide serial filter (jdk.serialFilter) to block dangerous classes and packages — a list curated with the ORL and recommended by security firm Onapsis — and complements an earlier remediation issued last month. Other critical fixes include a directory traversal in SAP Print Service (CVE-2025-42937, 9.8) and an unrestricted file upload in SAP Supplier Relationship Management (CVE-2025-42910, 9.0); administrators are urged to apply patches and mitigations immediately.

🔧 SolarWinds has released a hotfix to address a critical deserialization vulnerability in Web Help Desk that affects versions up to 12.8.7, tracked as CVE-2025-26399 (CVSS 9.8). The unauthenticated AjaxProxy flaw can enable remote command execution on vulnerable hosts if exploited. An anonymous researcher working with the Trend Micro Zero Day Initiative reported the issue. SolarWinds recommends immediate upgrade to 12.8.7 HF1 to mitigate risk.

⚠ Users of GoAnywhere MFT are urged to install an urgent patch for a critical insecure deserialization vulnerability tracked as CVE-2025-10035, rated CVSS 10. The flaw resides in the License Servlet and can allow an attacker with access to the Admin Console to submit a forged license response that deserializes an arbitrary, actor-controlled object, enabling remote command execution. Fortra released fixes in versions 7.8.4 and 7.6.3 and advises customers not to expose the Admin Console directly to the internet. The issue closely mirrors a 2023 vulnerability that was widely exploited by ransomware groups, elevating the risk of rapid exploitation.

🔒 Fortra has released security updates to address a maximum-severity deserialization vulnerability in the License Servlet of GoAnywhere MFT (CVE-2025-10035) that can lead to command injection when a forged license response is accepted. The vendor issued patched builds — GoAnywhere MFT 7.8.4 and Sustain Release 7.6.3 — and advised administrators to remove public access to the Admin Console if immediate patching is not possible. Shadowserver is monitoring over 470 instances, and Fortra emphasized that exploitation is highly dependent on the Admin Console being internet-exposed.

🔒 Fortra has released an urgent patch for GoAnywhere MFT to address a critical deserialization flaw (CVE-2025-10035, CVSS 10.0) in the License Servlet that can allow execution of arbitrary commands when an attacker supplies a forged license response signature. The vendor recommends updating to v7.8.4 or the Sustain Release 7.6.3. If patching cannot be applied immediately, ensure the Admin Console is not publicly accessible. No active exploitation has been reported.

⚠️ Hitachi Energy has disclosed multiple high-severity vulnerabilities in Asset Suite, affecting versions 9.6.4.5 and earlier. The issues include SSRF, deserialization of untrusted data, cleartext password exposure, uncontrolled resource consumption, open redirect, and improper authentication that can lead to remote code execution. Customers should apply vendor-provided mitigations and upgrades immediately to reduce exposure.

⚠️ Hitachi Energy disclosed a critical deserialization-of-untrusted-data vulnerability affecting Service Suite (versions prior to 9.6.0.4 EP4) that permits unauthenticated remote access via IIOP or T3 to compromise Oracle WebLogic Server. The issue is tracked as CVE-2020-2883 with a CVSS v4 base score of 9.3 and is characterized as remotely exploitable with low attack complexity. Hitachi Energy advises updating affected instances to version 9.8.2 or the latest release and applying vendor mitigation guidance immediately. CISA additionally recommends minimizing network exposure, isolating control networks behind firewalls, using up-to-date VPNs for remote access, and performing risk and impact assessments prior to deploying defensive changes.