CVE-2026-39836

Panic in Dial and LookupPort when handling NUL byte on Windows in net

High · published May 7, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
49.0
In the wild
Unconfirmed
What it is

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00620 · 49.0th percentile
Published
2026-05-07T19:41Z
EPSS history
Timeline
  • 07 MAY 19:41Z
    Panic in Dial and LookupPort when handling NUL byte on Windows in net
    cvelistv5