by Kastro
Paper/Archive/CVE-2026-62893

CVE-2026-62893

Microsoft Windows Server 2012 — Windows Deployment Services TFTP Server Remote Code Execution Vulnerability

EPSS 1.0%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 62.0.620 × 2012.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.

Affected

ProductAffectedFixed inSource
Windows Server 20126.2.9200.0 – < 6.2.9200.262806.2.9200.26280CNA
Windows Server 2012 (Server Core installation)6.2.9200.0 – < 6.2.9200.262806.2.9200.26280CNA
Windows Server 2012 R26.3.9600.0 – < 6.3.9600.233386.3.9600.23338CNA
Windows Server 2012 R2 (Server Core installation)6.3.9600.0 – < 6.3.9600.233386.3.9600.23338CNA
Windows Server 201610.0.14393.0 – < 10.0.14393.941810.0.14393.9418CNA
Windows Server 2016 (Server Core installation)10.0.14393.0 – < 10.0.14393.941810.0.14393.9418CNA
Windows Server 201910.0.17763.0 – < 10.0.17763.912110.0.17763.9121CNA
Windows Server 2019 (Server Core installation)10.0.17763.0 – < 10.0.17763.912110.0.17763.9121CNA
Windows Server 202210.0.20348.0 – < 10.0.20348.549910.0.20348.5499CNA
Windows Server 202510.0.26100.0 – < 10.0.26100.3329610.0.26100.33296CNA
Windows Server 2025 (Server Core installation)10.0.26100.0 – < 10.0.26100.3329610.0.26100.33296CNA

Scores by source

microsoft (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-62893