CVE-2026-39824
Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows
Vexday Risk Score
8Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 3.3EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
22 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
NewNTUnicodeString does not check for string length overflow. When provided with a string that overflows the maximum size of a NTUnicodeString (a 16-bit number of bytes), it returns a truncated string rather than an error.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
golang.org/x/sys · golang.org/x/sys/windows