This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: A critical Remote Code Execution (RCE) flaw in Microsoft's **SPNEGO Extended Negotiation (NEGOEX)** mechanism.β¦
π‘οΈ **Root Cause**: **CWE-122** (Heap-based Buffer Overflow). The vulnerability stems from improper memory handling within the SPNEGO extended negotiation process, allowing malicious data to overwrite memory.
Q3Who is affected? (Versions/Components)
π¦ **Affected Systems**: Primarily **Windows 10 Version 1809** (32-bit & x64) and **Windows Server 2019**. Note: Data also lists Windows 10 Version 1507 under product field. All listed Windows builds are at risk.
Q4What can hackers do? (Privileges/Data)
π **Attacker Capabilities**: With **CVSS 9.8 (Critical)** score, hackers can achieve **High Confidentiality, Integrity, and Availability impact**.β¦
β‘ **Exploitation Threshold**: **LOW**. The vector is **Network (AV:N)**, Attack Complexity is **Low (AC:L)**, and **No Privileges (PR:N)** or User Interaction (UI:N) are required. It is a remote, unauthenticated exploit.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π΅οΈ **Public Exploit Status**: **No**. The `pocs` array is empty in the provided data. No public Proof-of-Concept (PoC) or wild exploitation code is currently available based on this record.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: Scan for **SPNEGO/NEGOEX** services on Windows endpoints. Check if the system is running **Windows 10 1809** or **Server 2019**. Look for unpatched versions of the security update related to this CVE.
Q8Is it fixed officially? (Patch/Mitigation)
β **Official Fix**: **Yes**. Microsoft has released a security update. Refer to the official advisory: [MSRC Update Guide](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47981).β¦
π₯ **Urgency**: **CRITICAL**. With a CVSS score of **9.8** and no user interaction needed, this is a **high-priority** vulnerability. Patch immediately to prevent remote code execution attacks.