← back
CVE-2026-78523mediumCWE-416

Windows DNS Server Denial of Service Vulnerability

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.9epss 1.0%
exploitation probability
1.0%top 39% of all CVEs
observed exploitation
nono source reports it
Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C