CVE-2026-42915
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
5.7
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0021
43.2th percentile
Risk Priority
12
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2026-42915 is a medium-severity Incorrect Calculation of Buffer Size (CWE-131) vulnerability. Its CVSS base score is 5.7 (Medium).
Operationally, ranked at the 43.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-35727
Vulnerability details
Incorrect calculation of buffer size in Windows TCP/IP allows an authorized attacker to deny service over an adjacent 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.