Integer overflow in Weidmueller Ie-Wl-Bl-Ap-Cl-Eu
CVE-2021-33536
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.
EPSS: 0.010 (61.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Weidmueller Ie-wl-bl-ap-cl-eu
- Weidmueller Ie-wl-bl-ap-cl-eu_firmware
- Weidmueller Ie-wl-bl-ap-cl-us
- Weidmueller Ie-wl-bl-ap-cl-us_firmware
- Weidmueller Ie-wlt-bl-ap-cl-eu
- Weidmueller Ie-wlt-bl-ap-cl-eu_firmware
- Weidmueller Ie-wlt-bl-ap-cl-us
- Weidmueller Ie-wlt-bl-ap-cl-us_firmware
- Weidmueller Ie-wlt-vl-ap-br-cl-eu
- Weidmueller Ie-wlt-vl-ap-br-cl-eu_firmware
Weakness classification (CWE)
References
- info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33536?
- CVE-2021-33536 is a high-severity vulnerability in Weidmueller Ie-Wl-Bl-Ap-Cl-Eu, classified under Integer Underflow. CVSS score: 7.5/10. Published 2021-06-25.
- How severe is CVE-2021-33536?
- High severity. CVSS v3 base score is 7.5 out of 10.