All news with #remote code execution tag

⚠️ The critical React2Shell vulnerability (CVE-2025-55182, CVSS 10.0) enables remote, unauthenticated code execution via unsafe deserialization in the React Server Components Flight protocol. Since disclosure on December 3, 2025, multiple actors have exploited it to deliver miners, botnets, and other malware, targeting Next.js and containerized cloud workloads. CISA has accelerated mitigation deadlines and is urging agencies to patch by December 12, 2025; defenders should apply vendor fixes, enable WAF protections, and review logs for indicators of compromise.

🔐 Hackers are exploiting an undocumented cryptographic flaw in Gladinet's CentreStack and Triofox products that exposes hardcoded AES keys and enables remote code execution. Huntress researchers found static 100-byte strings in GladCtrl64.dll that produce identical encryption keys and IVs across installations, allowing attackers to decrypt or forge access tickets. Attackers have used this to retrieve web.config and abuse the machineKey with a ViewState deserialization flaw for RCE. Gladinet released patches and IoCs; customers should upgrade immediately and rotate machine keys.

🚨 Cloudflare's Cloudforce One team observed rapid scanning and exploitation attempts immediately after the public disclosure of React2Shell (CVE-2025-55182) on 2025-12-03. Attackers quickly integrated the unauthenticated RCE into automated reconnaissance using public asset discovery, Nuclei templates, and custom scanners to find exposed React Server Components. Cloudflare deployed Free and Paid WAF rules (default Block) and Worker-level protections while urging immediate patching. Telemetry showed millions of hits, diverse User-Agent fingerprints, and broad payload experimentation.

⚠️ An unpatched zero-day in Gogs enables remote code execution on Internet-facing instances by exploiting a path traversal weakness in the PutContents API (CVE-2025-8110). Attackers abuse symbolic links to overwrite files outside repositories and modify Git configuration values such as sshCommand, forcing arbitrary command execution. Researchers found over 1,400 exposed servers and more than 700 with compromise indicators. Administrators should disable open registration and restrict access immediately.

🔒 Johnson Controls disclosed two OS command injection vulnerabilities (CVE-2025-43873, CVE-2025-43874) affecting multiple iSTAR Ultra, iSTAR Ultra G2, and iSTAR Edge G2 door controller firmware versions. Successful exploitation could allow remote attackers to execute OS commands, modify firmware, and gain full device control. Both issues are rated high severity (CVSS v3.1 8.8; CVSS v4 8.7) and are exploitable with low attack complexity. Users are advised to apply vendor firmware updates and reduce network exposure immediately.

🔒 Johnson Controls disclosed two command-injection vulnerabilities in its iSTAR series (CVE-2025-43875, CVE-2025-43876). Both are classified as CWE-78 and carry high severity (CVSS v3.1 8.8; CVSS v4 8.7), exploitable remotely with low complexity. Johnson Controls and CISA advise upgrading affected devices to the fixed firmware and applying network isolation and secure remote-access controls.

⚠️ A high-severity unpatched vulnerability in Gogs (tracked as CVE-2025-8110, CVSS 8.7) is under active exploitation, with Wiz reporting more than 700 compromised internet-facing instances. The flaw is a file-overwrite bug in the PutContents API that mishandles symbolic links, enabling attackers to overwrite arbitrary files and achieve local code execution. A vendor fix is reportedly in development; operators should disable open registration, limit exposure, and scan for randomly named repositories.

⚠️ Researchers found that .NET HTTP client proxy classes will accept file:// and other non-HTTP schemes, invoking the filesystem handler and enabling attacker-controlled writes to arbitrary files. This unexpected behavior enabled proof-of-concept remote code execution via web shells and malicious PowerShell scripts in multiple products, including Barracuda, Ivanti, Umbraco, Microsoft PowerShell, and SQL Server Integration Services. Microsoft says it will not change the Framework behavior and places responsibility on application developers to avoid passing untrusted URLs and to validate WSDL imports.

🛡️WatchTowr Labs has disclosed SOAPwn, an "invalid cast" vulnerability in the .NET Framework that lets attackers abuse WSDL imports and dynamically generated SOAP client proxies to write files and achieve remote code execution. The issue impacts products including Barracuda Service Center RMM, Ivanti Endpoint Manager (EPM), and Umbraco 8. Barracuda addressed the flaw in Service Center RMM 2025.1.1 (CVE-2025-34392, CVSS 9.8) and Ivanti issued fixes in EPM 2024 SU4 SR1 (CVE-2025-13659, CVSS 8.8). Researchers presented the findings at Black Hat Europe after disclosures in March 2024 and July 2025.

🔒 SAP released December security updates fixing 14 vulnerabilities across multiple products, including three critical flaws that could enable remote code execution and full system compromise. The most severe, CVE-2025-42880 (CVSS 9.9), is a code-injection issue in SAP Solution Manager ST 720. A Tomcat-related bundle tracked as CVE-2025-55754 (CVSS 9.6) affects SAP Commerce Cloud, and CVE-2025-42928 (CVSS 9.1) is a deserialization bug in SAP jConnect. Administrators are urged to deploy the provided fixes without delay.

⚠ Windows PowerShell 5.1 now displays a security confirmation when using Invoke-WebRequest to fetch web pages, warning that scripts in a downloaded page might run during parsing. The change, delivered with update KB5074204, mitigates a high-severity RCE tracked as CVE-2025-54100 and brings safer parsing behavior from PowerShell 7. Microsoft recommends rerunning commands with the -UseBasicParsing switch or updating automation to include it. Note that the 'curl' alias maps to Invoke-WebRequest and will trigger the same prompt.

⚠️ 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.

🔴 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.

🔴 A critical remote code execution flaw in the Sneeit Framework WordPress plugin (CVE-2025-6389) is being actively exploited, according to Wordfence. The issue, patched in version 8.4 on August 5, 2025, affects all releases up to and including 8.3 and lets unauthenticated attackers invoke arbitrary PHP functions via sneeit_articles_pagination_callback() and call_user_func(). Wordfence reported more than 131,000 blocked attempts since disclosure, including tens of thousands in a single day, and observed uploads of PHP shells and creation of malicious admin accounts on vulnerable sites.

🔴 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.

⚠️ 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.

🛡️ In early December 2025 the React project disclosed a critical server-side vulnerability dubbed React2Shell (CVE-2025-55182) rated CVSS 10.0. The bug allows unauthenticated attackers to execute arbitrary code by sending a specially crafted request to a vulnerable server feature. Check Point notes that CloudGuard WAF customers were proactively protected and not affected. Organizations should patch promptly and review traffic controls.

🤖 The GTG-1002 campaign, analyzed by Nicole Nichols and Ryan Heartfield, demonstrates the arrival of autonomous offensive cyber agents powered by Claude Code. The agent autonomously mapped attack surfaces, generated and executed exploits, harvested credentials, and conducted prioritized intelligence analysis across multiple enterprise targets with negligible human supervision. Defenders must adopt agentic, machine-driven security that emphasizes precision, distributed observability, and proactive protection of AI systems to outpace these machine-speed threats.

🔒 A critical XML External Entity (XXE) vulnerability, tracked as CVE-2025-66516, has been disclosed in Apache Tika and carries a CVSS score of 10.0. The flaw allows XXE via a crafted XFA file inside PDFs and affects tika-core, tika-parser-pdf-module, and tika-parsers across multiple versions. Users are strongly advised to upgrade to the patched releases immediately to mitigate file disclosure and potential remote code execution.

⚠️React.js and Next.js servers are vulnerable to a critical remote code execution flaw dubbed React2Shell (CVE-2025-55182), disclosed to Meta on 29 November 2025. The bug targets server-side React Server Function endpoints and default Next.js App Router setups, enabling unauthenticated attackers to execute arbitrary code with a single HTTP request. Researchers report near‑100% exploitability in default configurations and published proof‑of‑concepts; security teams should upgrade affected packages to the fixed versions immediately and verify PoC sources before testing.