All news with #remote code execution tag

🚨 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.

⚠️Researchers from CheckPoint disclosed a critical remote code execution vulnerability in OpenAI's Codex CLI that allowed project-local .env files to redirect the CODEX_HOME environment variable and load attacker-controlled MCP servers. By adding a malicious mcp_servers entry in a repo-local .codex/config.toml, an attacker with commit or PR access could cause Codex to execute commands silently whenever a developer runs the tool. OpenAI addressed the issue in Codex CLI v0.23.0 by blocking project-local redirection of CODEX_HOME, but the flaw demonstrates how automated LLM-powered developer tools can expand the attack surface and enable persistent supply-chain backdoors.

🔒 Meta and Vercel disclosed a critical remote code execution vulnerability in React Server Components (CVE-2025-55182) that also affected some Next.js releases. Google Cloud rolled out a preconfigured Cloud Armor WAF rule (cve-canary), is enforcing protections for Firebase Hosting, and recommends testing the rule in preview while enabling ALB request logging to consume telemetry. Customers should promptly update dependencies to React 19.2.1 and the patched Next.js releases and redeploy services to remove the vulnerability.

🚨 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.

🔒 Microsoft has quietly fixed CVE-2025-9491, a Windows Shortcut (.LNK) UI misinterpretation flaw that enabled remote code execution and has been abused since 2017 by multiple state-affiliated and criminal groups. The change, deployed in November 2025, forces the Properties dialog to display the full Target command string regardless of length, removing the truncation that hid malicious arguments. Vendors including 0patch and ACROS Security noted alternative mitigations — a UI change by Microsoft and a warning-based micropatch — that together reduce user exposure.

🔒 Microsoft has quietly mitigated a high-severity Windows LNK vulnerability tracked as CVE-2025-9491, which attackers used to hide malicious command-line arguments inside .lnk files. The flaw relied on padding the Target field so Windows previously masked arguments beyond 260 characters, enabling persistence and malware delivery. Microsoft’s November update now shows the full Target string in Properties but does not remove malicious arguments or warn users. An unofficial 0Patch micropatch limits target strings and warns on unusually long values.

🛡️ Cloudflare has deployed new WAF protections to mitigate a high‑severity RCE in React Server Components (CVE-2025-55182). All customers whose React traffic is proxied through the Cloudflare WAF are automatically protected — the rules are included in both the Free Managed Ruleset and the standard Managed Ruleset and default to Block. Rule IDs: Managed Ruleset 33aa8a8a948b48b28d40450c5fb92fba and Free Ruleset 2b5d06e34a814a889bee9a0699702280; Cloudflare Workers are immune. Customers on paid plans should verify Managed Rules are enabled and update to React 19.2.1 and the recommended Next.js releases (16.0.7, 15.5.7, 15.4.8).

⚠️ Industrial Video & Control Longwatch versions 6.309–6.334 contain a code injection vulnerability that allows unauthenticated HTTP GET requests to execute arbitrary code, resulting in SYSTEM-level remote code execution. CISA assigns high severity (CVSS v4 9.3; CVSS v3.1 9.8) and recommends upgrading to version 6.335 or later. Reduce network exposure, isolate control networks behind firewalls, and use secure remote access methods while applying the vendor patch.

⚠️ Mirion Medical's EC2 Software NMIS BioDose versions prior to 23.0 contain multiple high-severity vulnerabilities (CVSS v4: 8.7) that are remotely exploitable and can enable code execution, data disclosure, and unauthorized access. The issues include incorrect permission assignment, client-side authentication, and hard-coded credentials affecting installed executables, the embedded SQL Server, and database accounts. Mirion recommends updating to v23.0 or later; CISA advises isolating control networks, minimizing exposure, and using secure remote access while performing impact analysis.

⚠️ Google’s AI-assisted coding tool Antigravity, launched in early November, has a critical vulnerability discovered by researchers at Mindgard within 24 hours that can install a persistent backdoor and execute malicious code each time the application starts. The flaw arises because the assistant follows custom user rules unconditionally and gives excessive weight to rules embedded in project source, while a global configuration directory can hold files specifying arbitrary commands that are read and acted on at startup. Mindgard also identified two additional vulnerabilities that could expose user data, and no patch is yet available.

🔒 Cisco Talos disclosed multiple vulnerabilities across Dell ControlVault, the Entr'ouvert Lasso SAML library, and the GL.iNet Slate AX travel router. Issues range from a hard-coded password and privilege escalation in ControlVault to memory corruption and buffer overflows that can enable arbitrary code execution, a type confusion bug and DoS in Lasso, and an OTA firmware downgrade in GL.iNet. Vendors have issued patches under Cisco’s disclosure policy and Snort rule updates are available to detect exploitation. Administrators should apply vendor updates, verify OTA integrity mechanisms, and deploy IDS signatures promptly.

⚠️ASUS has released firmware updates to remediate nine vulnerabilities, including a critical authentication bypass (CVE-2025-59366) affecting routers with AiCloud enabled. The flaw is caused by an unintended Samba side effect and can be exploited by unauthenticated remote attackers chaining a path traversal and an OS command injection in low-complexity attacks. Users should apply the provided firmware (3.0.0.4_386, 3.0.0.4_388, 3.0.0.6_102) immediately or follow ASUS mitigation guidance for end-of-life models.

⚠️ Zenitel has disclosed multiple high‑severity vulnerabilities in the TCIV-3+ intercom device, including three OS command injection flaws, an out‑of‑bounds write, and a reflected XSS. The issues (CVE-2025-64126 through CVE-2025-64130) carry high CVSS ratings — several are scored CVSS v4 10.0 — and can be exploited remotely with low complexity. Zenitel advises upgrading to version 9.3.3.0 or later; CISA recommends isolating devices, minimizing Internet exposure, and applying defensive controls until patches are deployed.

🔒 Rockwell Automation has released an update for Arena Simulation to address a stack-based buffer overflow (CWE-121) in the parsing of DOE files that could allow local attackers to execute arbitrary code. The issue, tracked as CVE-2025-11918 (CVSS v4 7.1), affects versions 16.20.10 and earlier and requires opening a malicious DOE file. Rockwell fixed the vulnerability in 16.20.11; users should upgrade or apply recommended mitigations to reduce exposure.

⚠️ The Cybersecurity and Infrastructure Security Agency (CISA) added a critical pre-authenticated remote code execution flaw in Oracle Identity Manager (CVE-2025-61757) to its Known Exploited Vulnerabilities catalog after active exploitation was observed. Searchlight Cyber reported that a flawed authentication filter combined with matrix/query parameters lets attackers bypass auth and reach a Groovy compile endpoint, enabling RCE through compile-time annotation processing. Oracle fixed the issue in its October 2025 Critical Patch Update; federal agencies must remediate by December 12, 2025.

🔴 Oracle Identity Manager is affected by a critical unauthenticated remote code execution flaw, CVE-2025-61757, impacting versions 12.2.1.4.0 and 14.1.2.1.0. Disclosed by Searchlight Cyber on 20 November and reported by Oracle on 21 November, the bug was added to the CISA KEV catalog the same day. The issue resides in the REST WebServices component and carries a CVSS score of 9.8, enabling HTTP access to execute arbitrary code and potentially allowing full takeover. CISA urges immediate patching or isolation of affected services from the public internet.

🛡️ A recently patched WSUS deserialization flaw, CVE-2025-59287, has been weaponized to install the ShadowPad backdoor on Windows servers. AhnLab's ASEC reports attackers used PowerCat to spawn a CMD shell and then leveraged certutil and curl to retrieve payloads from 149.28.78.189:42306. ShadowPad was deployed via DLL side-loading of ETDApix.dll by ETDCtrlHelper.exe and runs as an in-memory loader with plugin support, anti-detection, and persistence.

⚠️ CISA has added CVE-2025-61757 to its Known Exploited Vulnerabilities (KEV) catalog following reports of active exploitation targeting Oracle Identity Manager. The flaw, a missing-authentication issue with a CVSS score of 9.8, affects versions 12.2.1.4.0 and 14.1.2.1.0 and was addressed in Oracle's recent quarterly updates. Searchlight Cyber researchers demonstrated that an allow-list bypass using URI tricks such as ?WSDL or ;.wadl can expose protected API endpoints and enable pre-authenticated remote code execution via the groovyscriptstatus endpoint. Federal civilian agencies must apply the patch by December 12, 2025.

🚨 CISA has added CVE-2025-61757, a pre-authentication remote code execution vulnerability in Oracle Identity Manager, to its Known Exploited Vulnerabilities catalog and ordered federal agencies to patch by December 12 under BOD 22-01. The flaw, disclosed by Searchlight Cyber, abuses an authentication bypass in REST APIs by appending parameters such as ?WSDL or ;.wadl to URL paths, exposing a Groovy compilation endpoint. Researchers showed that Groovy's annotation-processing can execute code at compile time, enabling pre-auth RCE. Oracle released a fix on October 21, 2025; CISA warned the issue is being actively exploited.