CVE-2021-33536CWE-191

WEIDMUELLER: WLAN devices affected by Denial-of-Service vulnerability

High · published June 25, 2021

CVSS v3.1
7.5
EPSS
1%
Percentile
63.6
In the wild
Unconfirmed
What it is

In Weidmueller Industrial WLAN devices in multiple versions an exploitable denial-of-service vulnerability exists in ServiceAgent functionality. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated to trigger this vulnerability.

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
0.01037 · 63.6th percentile
Weakness
CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2021-06-25T18:26Z
EPSS history
Timeline
  • 25 JUN 18:26Z
    WEIDMUELLER: WLAN devices affected by Denial-of-Service vulnerability
    cvelistv5