CVE-2026-62878Critical· 9.8▾ AbyssalPoC availableStack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 53.9 · likelihood 0.2 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
1.3%
1 GitHub repo
Last analysed / modified upstream
Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
windows_server_2012 >= 6.2.9200.0 < 6.2.9200.26280windows_server_2012_server_core_installation >= 6.2.9200.0 < 6.2.9200.26280windows_server_2012_r2 >= 6.3.9600.0 < 6.3.9600.23338windows_server_2012_r2_server_core_installation >= 6.3.9600.0 < 6.3.9600.23338windows_server_2016 >= 10.0.14393.0 < 10.0.14393.9418windows_server_2016_server_core_installation >= 10.0.14393.0 < 10.0.14393.9418windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9121windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9121windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5499windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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