PT-2021-20183 · Weidmueller · Weidmueller Industrial Wlan Devices

Published 2021-06-25 · Updated 2021-07-27 · CVE-2021-33536

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Weidmueller Industrial WLAN devices (affected versions not specified)

Description A denial-of-service issue exists in the ServiceAgent functionality due to an integer underflow caused by a specially crafted packet. This underflow triggers a large memcpy that accesses unmapped or out-of-bounds memory. An attacker can exploit this issue without authentication by sending the crafted packet.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2021-33536

Affected Products

Weidmueller Industrial Wlan Devices

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-33536 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33536 · Vendor Advisory
• https://t.me/cvenotify/16923 · Telegram Post
• https://t.me/cvenotify/16758 · Telegram Post
• https://cert.vde.com/en-us/advisories/vde-2021-026 · Note