CVE-2026-8047CWE-1284

Out-of-bounds Write in CODESYS Control

High · published May 26, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

The affected products perform improper length checking when parsing incoming HTTP requests, resulting in a size-limited out-of-bounds write. An unauthenticated remote attacker can exploit this flaw to cause a denial of service via a system crash on the affected device.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00573 · 46.6th percentile
Weakness
CWE-1284 · Improper Validation of Specified Quantity in Input
Published
2026-05-26T06:49Z
EPSS history
Timeline
  • 26 MAY 06:49Z
    Out-of-bounds Write in CODESYS Control
    cvelistv5