CVE-2026-42903
MEDIUM EPSS 55.2%
Published Jun 9, 20262w ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Jun 9, 2026 2w ago
Last Modified Jun 17, 2026 1w ago
Description
Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
55.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-476 NULL Pointer Dereference Memory Safety
Affected Products 24
| Vendor | Product | Version | Range |
|---|---|---|---|
| microsoft | windows_10_1607 | * | <10.0.14393.9234 |
| microsoft | windows_10_1607 | * | <10.0.14393.9234 |
| microsoft | windows_10_1809 | * | <10.0.17763.8880 |
| microsoft | windows_10_1809 | * | <10.0.17763.8880 |
| microsoft | windows_10_21h2 | * | <10.0.19044.7417 |
| microsoft | windows_10_21h2 | * | <10.0.19044.7417 |
| microsoft | windows_10_21h2 | * | <10.0.19044.7417 |
| microsoft | windows_10_22h2 | * | <10.0.19045.7417 |
| microsoft | windows_10_22h2 | * | <10.0.19045.7417 |
| microsoft | windows_10_22h2 | * | <10.0.19045.7417 |
| microsoft | windows_11_23h2 | * | <10.0.22631.7219 |
| microsoft | windows_11_23h2 | * | <10.0.22631.7219 |
| microsoft | windows_11_24h2 | * | <10.0.26100.8655 |
| microsoft | windows_11_24h2 | * | <10.0.26100.8655 |
| microsoft | windows_11_25h2 | * | <10.0.26200.8655 |
| microsoft | windows_11_25h2 | * | <10.0.26200.8655 |
| microsoft | windows_11_26h1 | * | <10.0.28000.2269 |
| microsoft | windows_11_26h1 | * | <10.0.28000.2269 |
| microsoft | windows_server_2012 | * | any |
| microsoft | windows_server_2012 | r2 | any |
| microsoft | windows_server_2016 | * | <10.0.14393.9234 |
| microsoft | windows_server_2019 | * | <10.0.17763.8880 |
| microsoft | windows_server_2022 | * | <10.0.20348.5256 |
| microsoft | windows_server_2025 | * | <10.0.26100.32995 |
References 1
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42903
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.