CVE-2026-42903

MediumCVSS 6.5/10Last modified Jul 23, 2026

Description

Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 9, 2026
Last modified
Jul 23, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-429049.6Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.CVE-2026-429057.8Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.CVE-2026-429065.5Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information locally.CVE-2026-429076.5Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a netCVE-2026-429087.5Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.CVE-2026-429097.5Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized CVE-2026-429107.8Out-of-bounds write in Windows Hotpatch Monitoring Service allows an authorized attacker to elevate privileges locally.CVE-2026-429117.0Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.CVE-2026-429127.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorizeCVE-2026-429137.5Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized CVE-2026-429145.3Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.CVE-2026-429155.5Incorrect calculation of buffer size in Windows VMSwitch allows an authorized attacker to deny service locally.
CVE-2026-42903: Medium severity, CVSS 6.5 | Vulnix