CVE-2026-42903
Medium
Published: 09 June 2026
Published
09 June 2026
Modified
09 June 2026
KEV Added
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Patch
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CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0018
39.1th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2026-42903 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability. Its CVSS base score is 6.5 (Medium).
Operationally, ranked at the 39.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-35592
Vulnerability details
Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network.
- 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.