Cyber Resilience

CVE-2021-33533

HighRCE

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 0.0565 90.6th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-33533 is a high-severity OS Command Injection (CWE-78) vulnerability in Weidmueller Ie-Wl-Bl-Ap-Cl-Eu Firmware. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 9.4% 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 command injection vulnerability exists in the iw_webs functionality. A specially crafted iw_serverip parameter can cause user input to be reflected in a subsequent iw_system call, resulting in remote control over…

more

the device. An 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

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References