Cyber Resilience

CVE-2021-33535

High

Published: 25 June 2021

Published
25 June 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0191 83.7th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-33535 is a high-severity Use of Externally-Controlled Format String (CWE-134) vulnerability in Weidmueller Ie-Wl-Bl-Ap-Cl-Eu Firmware. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 16.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

In Weidmueller Industrial WLAN devices in multiple versions an exploitable format string vulnerability exists in the iw_console conio_writestr functionality. A specially crafted time server entry can cause an overflow of the time server buffer, resulting in remote code execution. An…

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attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

weidmueller
ie-wl-bl-ap-cl-eu firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wlt-bl-ap-cl-eu firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wl-bl-ap-cl-us firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wlt-bl-ap-cl-us firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wl-vl-ap-br-cl-eu firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wlt-vl-ap-br-cl-eu firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wl-vl-ap-br-cl-us firmware
≤ 1.16.18 · ≤ 1.11.10
weidmueller
ie-wlt-vl-ap-br-cl-us firmware
≤ 1.16.18 · ≤ 1.11.10

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References