CVE-2021-33538: weidmueller ie-wl-bl-ap-cl-eu_firmware Improper Privilege Management
Vulnerability summary
CVE-2021-33538 is a high (CVSS 9.0) Improper Privilege Management vulnerability in weidmueller ie-wl-bl-ap-cl-eu_firmware. EPSS estimates a 1.05% chance of exploitation in the next 30 days, higher than 63.8% of scored vulnerabilities.
Timeline
- 25-06-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In Weidmueller Industrial WLAN devices in multiple versions an exploitable improper access control vulnerability exists in the iw_webs account settings functionality. A specially crafted user name entry can cause the overwrite of an existing user account password, resulting in remote shell access to the device as that user. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.05%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
0.00 pp
From 1.05% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Weidmueller8 products
- ie-wl-bl-ap-cl-eu_firmware≤ 1.16.18 | ≤ 1.11.10
- ie-wl-bl-ap-cl-us_firmware≤ 1.16.18 | ≤ 1.11.10
- ie-wl-vl-ap-br-cl-eu_firmware≤ 1.16.18 | ≤ 1.11.10
- ie-wl-vl-ap-br-cl-us_firmware≤ 1.16.18 | ≤ 1.11.10
- ie-wlt-bl-ap-cl-eu_firmware≤ 1.16.18 | ≤ 1.11.10
Weidmüller2 products
- ie-wl(t)-bl-ap-cl-xx≥ IE-WL-BL-AP-CL-EU (2536600000), ≤ V1.16.18 (Build 18081617) | ≥ IE-WLT-BL-AP-CL-EU (2536650000), ≤ V1.16.18 (Build 18081617) | ≥ IE-WL-BL-AP-CL-US (2536660000), ≤ V1.16.18 (Build 18081617) | ≥ IE-WLT-BL-AP-CL-US (2536670000), ≤ V1.16.18 (Build 18081617)
- ie-wl(t)-vl-ap-cl-xx≥ IE-WL-VL-AP-BR-CL-EU (2536680000), ≤ V1.11.10 (Build 18122616) | ≥ IE-WLT-VL-AP-BR-CL-EU (2536690000), ≤ V1.11.10 (Build 18122616) | ≥ IE-WL-VL-AP-BR-CL-US (2536700000), ≤ V1.11.10 (Build 18122616) | ≥ IE-WLT-VL-AP-BR-CL-US (2536710000), ≤ V1.11.10 (Build 18122616)
2 vendors · 10 products