CVE-2026-86530CWE-78command-injection

CVE-2026-86530

High · published September 28, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
28.6
In the wild
Unconfirmed
What it is

BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally. An administrative user may send a crafted HTTP request and execute an arbitrary OS command.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00360 · 28.6th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-28T13:17Z
References (2)
https://jvn.jp/en/vu/JVNVU94863997/ · [email protected]https://www.buffalo.jp/news/detail/20260928-01.html · [email protected]
EPSS history
Timeline
  • 29 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 28 SEP 08:14Z
    BUFFALO Wi-Fi products handle some web form input improperly to assemble command line strings internally
    cvelistv5