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HIGH · 8.8

CVE-2021-33535

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 ...

Vulnerability Description

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

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
WeidmuellerIe-Wl-Bl-Ap-Cl-Eu Firmware<= 1.16.18
WeidmuellerIe-Wl-Bl-Ap-Cl-Eu-
WeidmuellerIe-Wlt-Bl-Ap-Cl-Eu Firmware<= 1.16.18
WeidmuellerIe-Wlt-Bl-Ap-Cl-Eu-
WeidmuellerIe-Wl-Bl-Ap-Cl-Us Firmware<= 1.16.18
WeidmuellerIe-Wl-Bl-Ap-Cl-Us-
WeidmuellerIe-Wlt-Bl-Ap-Cl-Us Firmware<= 1.16.18
WeidmuellerIe-Wlt-Bl-Ap-Cl-Us-
WeidmuellerIe-Wl-Vl-Ap-Br-Cl-Eu Firmware<= 1.16.18
WeidmuellerIe-Wl-Vl-Ap-Br-Cl-Eu-
WeidmuellerIe-Wlt-Vl-Ap-Br-Cl-Eu Firmware<= 1.16.18
WeidmuellerIe-Wlt-Vl-Ap-Br-Cl-Eu-
WeidmuellerIe-Wl-Vl-Ap-Br-Cl-Us Firmware<= 1.16.18
WeidmuellerIe-Wl-Vl-Ap-Br-Cl-Us-
WeidmuellerIe-Wlt-Vl-Ap-Br-Cl-Us Firmware<= 1.16.18
WeidmuellerIe-Wlt-Vl-Ap-Br-Cl-Us-

Related Weaknesses (CWE)

CWE-134

References

FAQ

What is CVE-2021-33535?

CVE-2021-33535 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...

How severe is CVE-2021-33535?

CVE-2021-33535 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-33535?

Check the references section above for vendor advisories and patch information. Affected products include: Weidmueller Ie-Wl-Bl-Ap-Cl-Eu Firmware, Weidmueller Ie-Wl-Bl-Ap-Cl-Eu, Weidmueller Ie-Wlt-Bl-Ap-Cl-Eu Firmware, Weidmueller Ie-Wlt-Bl-Ap-Cl-Eu, Weidmueller Ie-Wl-Bl-Ap-Cl-Us Firmware.