CVE-2025-49686
Published: 08 July 2025
Summary
CVE-2025-49686 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 21.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2025-49686 is a null pointer dereference weakness, tracked under CWE-476, that resides in the Windows TCP/IP network stack. It received a CVSS v3.1 base score of 7.8 and was published on 8 July 2025.
An attacker who already possesses a local authorized account can trigger the flaw to escalate privileges on the target Windows system, potentially obtaining full control over the affected host.
The official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49686 describes the available security updates and any recommended configuration steps for remediation.
The associated EPSS score has remained flat at 0.0111 with no observed rise, indicating limited public exploitation interest to date.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-20638
Vulnerability details
Null pointer dereference in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.